Parasites, Hosts and Diseases

"egg"

Original Articles

A novel kit for enrichment of fecal helminth eggs: Eunsol Lee, Seon-Ok Back, Young-Ju Lee, Jung-Won Ju, Hee-Il Lee, Myoung-Ro Lee; Parasites Hosts Dis 2024;62(3):323-329.
Published online August 26, 2024; DOI: https://doi.org/10.3347/PHD.24021

Abstract
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We developed a new concentration kit, called the ParaEgg (PE), for easy detection trematode eggs from fecal samples in endemic areas of clonorchiasis and metagonimiasis in Korea. To create a standard of detection efficiency, 120 fecal samples were examined using the water–ether concentration method (WECM). The PE kit and Mini ParaSep (PS) kit were used to compare the detection sensitivity of 100 egg-positive and 20 egg-negative samples in WECM. Additionally, stool samples, which were intentionally spiked with 10, 20, and 30 Clonorchis sinensis eggs, were evaluated to assess the sensitivity in lowinfection cases. The PE and PS kits showed detection rates of 100% and 92%, respectively, from 100 egg-positive samples in WECM. Meanwhile, eggs were detected in 3 (PE) and 2 (PS) out of 20 egg-negative samples in WECM. The PE kit detected the highest number of eggs per gram of feces (727 on average), followed by the WECM (524) and PS kit (432). In fecal samples that were intentionally spiked with 10, 20, and 30 C. sinensis eggs, PE only detected eggs 2 out of 5 samples in 10 eggs spiked (40%), and the detection rates were 80% and 100%, respectively. The PE kit enabled a more accurate identification of trematode eggs because of the clearance of small fecal debris in the microscopic field. In conclusion, the PE kit is obviously helpful to detect and identify trematode eggs in stool examinations especially in endemic areas of clonorchiasis and metagonimiasis.

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2024년 장내기생충 유행지역 감염 조사

Public Health Weekly Report.2025; 18(19): 707. CrossRef
Diagnostic performance evaluation of ParaEgg for identifying intestinal helminthiasis: A comparative study with conventional copromicroscopy
Tilak Chandra Nath, Heeil Lee, Md. Mahamudul Hasan, Tanmoy Roy Rudro, Dipta Das, Md. Taufiqur Rahman, Nandiny Saha Roy, Pritha Parial, Proloy Chakraborty Tusher, Tarek Siddiki
Parasite Epidemiology and Control.2025; 30: e00449. CrossRef
Detection of intestinal parasites in leopard cat fecal samples using shotgun metagenomics
Jun Ho Choi, Singeun Oh, Myung-hee Yi, Dongjun Kang, Du-Yeol Choi, Xavier Chavarria, Arwa Shatta, Yoon Hee Cho, Seongjun Choe, Seung-Hun Lee, Ju Yeong Kim
Parasites, Hosts and Diseases.2025; 63(4): 349. CrossRef

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In vitro anti-Trypanosoma cruzi activity of methanolic extract of Bidens pilosa and identification of active compounds by gas chromatography-mass spectrometry analysis: Gabriel Enrique Cázares-Jaramillo, Zinnia Judith Molina-Garza, Itza Eloisa Luna-Cruz, Luisa Yolanda Solís-Soto, José Luis Rosales-Encina, Lucio Galaviz-Silva; Parasites Hosts Dis 2023;61(4):405-417.
Published online November 28, 2023; DOI: https://doi.org/10.3347/PHD.23069

Abstract
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Chagas disease, caused by Trypanosoma cruzi parasite, is a significant but neglected tropical public health issue in Latin America due to the diversity of its genotypes and pathogenic profiles. This complexity is compounded by the adverse effects of current treatments, underscoring the need for new therapeutic options that employ medicinal plant extracts without negative side effects. Our research aimed to evaluate the trypanocidal activity of Bidens pilosa fractions against epimastigote and trypomastigote stages of T. cruzi, specifically targeting the Brener and Nuevo León strains—the latter isolated from Triatoma gerstaeckeri in General Terán, Nuevo León, México. We processed the plant’s aerial parts (stems, leaves, and flowers) to obtain a methanolic extract (Bp-mOH) and fractions with varying solvent polarities. These preparations inhibited more than 90% of growth at concentrations as low as 800 μg/ml for both parasite stages. The median lethal concentration (LC50) values for the Bp-mOH extract and its fractions were below 500 μg/ml. Tests for cytotoxicity using Artemia salina and Vero cells and hemolytic activity assays for the extract and its fractions yielded negative results. The methanol fraction (BPFC3MOH1) exhibited superior inhibitory activity. Its functional groups, identified as phenols, enols, alkaloids, carbohydrates, and proteins, include compounds such as 2-hydroxy-3-methylbenzaldehyde (50.9%), pentadecyl prop-2-enoate (22.1%), and linalool (15.4%). Eight compounds were identified, with a match confirmed by the National Institute of Standards and Technology (NIST-MS) software through mass spectrometry analysis.

Citations

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Inhibitory Activity of Compounds Obtained from Streptomyces Against Trypanosoma cruzi
Jorge Andrés Delgado-Garduño, Lucio Galaviz-Silva, Ma Guadalupe Rojas-Verde, Joel Horacio Elizondo-Luevano, Lidia Baylón-Pacheco, José Luis Rosales-Encina, Guadalupe Gutiérrez-Soto, Zinnia Judith Molina-Garza
Pathogens.2025; 14(7): 638. CrossRef
Nanostructured Polyurethane‐Collagen Hydrogels: Bioactive Crosslinked Networks for Enhanced Wound Healing
María I. León‐Campos, Jesús A. Claudio‐Rizo, Luis E. Cobos‐Puc, Denis A. Cabrera‐Munguía, Anilú Rubio‐Rios, Ernesto Oyervides‐Muñoz, Angélica Velázquez‐Arrellano
Journal of Biomedical Materials Research Part A.2025;[Epub] CrossRef
Assessment of Anticancer Properties of Argemone mexicana L. and Berberine: A Comparative Study
Joel H. Elizondo-Luevano, Ramiro Quintanilla-Licea, Imelda N. Monroy-García, Miroslava Kačániová, Uziel Castillo-Velázquez, Aldo F. Bazaldúa-Rodríguez, Lourdes M. Garza-Vega, Ángel D. Torres-Hernández, Abelardo Chávez-Montes
Plants.2024; 13(10): 1374. CrossRef
In Vitro Evaluation of Anti-Hemolytic and Cytotoxic Effects of Traditional Mexican Medicinal Plant Extracts on Human Erythrocytes and Cell Cultures
Joel H. Elizondo-Luevano, Ramiro Quintanilla-Licea, Sandra L. Castillo-Hernández, Eduardo Sánchez-García, Minerva Bautista-Villarreal, Georgia M. González-Meza, Marcela A. Gloria-Garza, Osvelia E. Rodríguez-Luis, Maciej Ireneusz Kluz, Miroslava Kačániová
Life.2024; 14(9): 1176. CrossRef

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Brief Communication

Standard- and large-sized eggs of Trichuris trichiura in the feces of schoolchildren in the Yangon Region, Myanmar: Morphological and molecular analyses: Seungwan Ryoo, Bong-Kwang Jung, Sooji Hong, Hyejoo Shin, Hyemi Song, Hyun-Seung Kim, Jin-Youp Ryu, Woon-Mok Sohn, Sung-Jong Hong, Thi Thi Htoon, Htay Htay Tin, Jong-Yil Chai; Parasites Hosts Dis 2023;61(3):317-324.
Published online August 21, 2023; DOI: https://doi.org/10.3347/PHD.23059

Standard- and large-sized eggs of Trichuris trichiura were found in the feces of schoolchildren in Yangon, Myanmar during epidemiological surveys and mass deworming with albendazole in 2017-2019. The standard-sized eggs were identified as those of T. trichiura, but it was necessary to exclude the possibility of the large-sized eggs belonging to Trichuris vulpis, a dog whipworm. We conducted morphological and molecular studies to determine the species of the 2 types of Trichuris eggs. Individual eggs of both sizes were isolated from Kato-Katz fecal smears (n=20) and mechanically destroyed using a 23G injection needle. Nuclear DNA was extracted, and the 18S rRNA region was sequenced in 15 standard-sized eggs and 15 large-sized eggs. The average size of standard-sized eggs (T. trichiura) was 55.2×26.1 μm (range: 51.7-57.6×21.3-28.0 μm; n=97), whereas the size of large-sized eggs was 69.3×32.0 μm (range: 65.1-76.4×30.1-34.5 μm; n=20), slightly smaller than the known size of T. vulpis. Regarding standard-sized eggs, the 18S rRNA nucleotide sequences exhibited 100% homology with T. trichiura deposited in GenBank and 88.6-90.5% homology with T. vulpis. Regarding large-sized eggs, the nucleotide sequences showed 99.8-100% homology with T. trichiura in GenBank and 89.6-90.7% homology with T. vulpis. Both standard- and large-sized eggs of Trichuris spp. found in Myanmar schoolchildren during 2017-2019 were morphologically and molecularly confirmed to belong to T. trichiura. The conversion of eggs from smaller to large sizes might be due to anthelmintic treatments with albendazole.

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Paleoparasitology research on ancient helminth eggs and larvae in the Republic of Korea
Jong-Yil Chai, Min Seo, Dong Hoon Shin
Parasites, Hosts and Diseases.2023; 61(4): 345. CrossRef

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Case Report

Helminth Eggs Detected in Soil Samples of a Possible Toilet Structure Found at the Capital Area of Ancient Baekje Kingdom of Korea: Chang Seok Oh, Sang-Yuck Shim, Yongjun Kim, Jong Ha Hong, Jong-Yil Chai, Hisashi Fujita, Min Seo, Dong Hoon Shin; Korean J Parasitol 2021;59(4):393-397.
Published online August 18, 2021; DOI: https://doi.org/10.3347/kjp.2021.59.4.393

Abstract
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Although research conducted in East Asia has uncovered parasite eggs from ancient toilets or cesspits, data accumulated to date needs to be supplemented by more archaeoparasitological studies. We examined a total of 21 soil samples from a toilet-like structure at the Hwajisan site, a Baekje-period royal villa, in present-day Korea. At least 4 species of helminth eggs, i.e., Trichuris trichiura, Ascaris lumbricoides, Clonorchis sinensis, and Trichuris sp. (or Trichuris vulpis) were detected in 3 sediment samples of the structure that was likely a toilet used by Baekje nobles. The eggs of T. trichiura were found in all 3 samples (no. 1, 4, and 5); and A. lumbricoides eggs were detected in 2 samples (no. 4 and 5). C. sinensis and T. vulpis-like eggs were found in no. 5 sample. From the findings of this study, we can suppose that the soil-transmitted helminths were prevalent in ancient Korean people, including the nobles of Baekje Kingdom during the 5th to 7th century.

Citations

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Clonorchis sinensis and Cholangiocarcinoma
Eun-Min Kim, Sung-Tae Hong
Journal of Korean Medical Science.2025;[Epub] CrossRef
Problems in Japanese archaeoparasitology: Analysis of paleo-parasitic eggs from Hachinohe Castle
Hisashi Fujita, Masako Funaba, Shiori O. Fujisawa
Parasites, Hosts and Diseases.2025; 63(3): 278. CrossRef
Paleoparasitology research on ancient helminth eggs and larvae in the Republic of Korea
Jong-Yil Chai, Min Seo, Dong Hoon Shin
Parasites, Hosts and Diseases.2023; 61(4): 345. CrossRef

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Letter to the Editor

Confusing a Pollen Grain with a Parasite Egg: Infection or Traditional Medicine?: Gholamreza Mowlavi, Niloofar Paknezhad, Jean Dupouy-Camet, Jean Pierre Hugot; Korean J Parasitol 2020;58(2):211-212.
Published online April 30, 2020; DOI: https://doi.org/10.3347/kjp.2020.58.2.211

Abstract
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Camacho & Reinhard stated in the December 2019 issue of the KJP (57: 621-625) that we confused a pollen grain with an Enterobius egg found in the grave of a female adolescent residing in ancient Tehran 7,000 years ago. We want here to clarify and answer to the outlined points in their article.

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Paleoparasitology and archaeoparasitology in Iran: A retrospective in differential diagnosis
Alireza Sazmand
International Journal of Paleopathology.2021; 32: 50. CrossRef

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Original Article

Partial Characterization of Two Cathepsin D Family Aspartic Peptidases of Clonorchis sinensis: Jung-Mi Kang, Won-Gi Yoo, H??ng Giang L?, Th? Lam Th?i, Sung-Jong Hong, Woon-Mok Sohn, Byoung-Kuk Na; Korean J Parasitol 2019;57(6):671-680.
Published online December 31, 2019; DOI: https://doi.org/10.3347/kjp.2019.57.6.671

Cathepsin D (CatD, EC 3.4.23.5) is a member belonging to the subfamily of aspartic endopeptidases, which are classified into the MEROPS clan AA, family A1. Helminth parasites express a large set of different peptidases that play pivotal roles in parasite biology and pathophysiology. However, CatD is less well known than the other classes of peptidases in terms of biochemical properties and biological functions. In this study, we identified 2 novel CatDs (CsCatD1 and CsCatD2) of Clonorchis sinensis and partially characterized their properties. Both CsCatDs represent typical enzymes sharing amino acid residues and motifs that are tightly conserved in the CatD superfamily of proteins. Both CsCatDs showed similar patterns of expression in different developmental stages of C. sinensis, but CsCatD2 was also expressed in metacercariae. CsCatD2 was mainly expressed in the intestines and eggs of C. sinensis. Sera obtained from rats experimentally infected with C. sinensis reacted with recombinant CsCatD2 beginning 2 weeks after infection and the antibody titers were gradually increased by maturation of the parasite. Structural analysis of CsCatD2 revealed a bilobed enzyme structure consisting of 2 antiparallel β-sheet domains packed against each other forming a homodimeric structure. These results suggested a plausible biological role of CsCatD2 in the nutrition and reproduction of parasite and its potential utility as a serodiagnostic antigen in clonorchiasis.

Citations

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Clonorchis sinensis excretory/secretory proteins ameliorate inflammation in rheumatoid arthritis and ankylosing spondylitis
Moon-Ju Kim, Hee Min Yoo, Yu Jeong Lee, Hyun Hee Jang, Seung Cheol Shim, Eun Jeong Won, Tae-Jong Kim
Parasites & Vectors.2025;[Epub] CrossRef
Proteomic analysis of extracellular vesicles and extracellular vesicle-depleted excretory-secretory products of Toxocara canis and Toxocara cati larval cultures
Timothy K. Wu, Qin Fu, Janice L. Liotta, Dwight D. Bowman
Veterinary Parasitology.2024; 332: 110331. CrossRef
An insight into the functional genomics and species classification of Eudiplozoon nipponicum (Monogenea, Diplozoidae), a haematophagous parasite of the common carp Cyprinus carpio
Jiří Vorel, Nikol Kmentová, Christoph Hahn, Petr Bureš, Martin Kašný
BMC Genomics.2023;[Epub] CrossRef
In silico identification of excretory/secretory proteins and drug targets in monogenean parasites
Víctor Caña-Bozada, Martha Chapa-López, Rubén D. Díaz-Martín, Alejandra García-Gasca, José Ángel Huerta-Ocampo, Guillermo de Anda-Jáuregui, F. Neptalí Morales-Serna
Infection, Genetics and Evolution.2021; 93: 104931. CrossRef
pH-Dependent Structural Dynamics of Cathepsin D-Family Aspartic Peptidase of Clonorchis sinensis
Jung-Mi Kang, Hương Giang Lê, Byoung-Kuk Na, Won Gi Yoo
Pathogens.2021; 10(9): 1128. CrossRef
Dopaminergic antagonists inhibit bile chemotaxis of adult Clonorchis sinensis and its egg production
Fuhong Dai, Jin-Ho Song, Yeon Pyo Hong, Xuelian Bai, Woon-Mok Sohn, Sung-Jong Hong, jong-Yil Chai
PLOS Neglected Tropical Diseases.2020; 14(3): e0008220. CrossRef
Identification and Analysis of the Tegument Protein and Excretory-Secretory Products of the Carcinogenic Liver Fluke Clonorchis sinensis
Yunliang Shi, Kai Yu, Anli Liang, Yan Huang, Fangqi Ou, Haiyan Wei, Xiaoling Wan, Yichao Yang, Weiyu Zhang, Zhihua Jiang
Frontiers in Microbiology.2020;[Epub] CrossRef

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Brief Communications

Confusing a Pollen Grain with a Parasite Egg: an Appraisal of “Paleoparasitological Evidence of Pinworm (Enterobius Vermicularis) Infection in a Female Adolescent Residing in Ancient Tehran”: Morgana Camacho, Karl J. Reinhard; Korean J Parasitol 2019;57(6):621-625.
Published online December 31, 2019; DOI: https://doi.org/10.3347/kjp.2019.57.6.621

Abstract
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There is often the risk of confusing pollen grains with helminth eggs from archaeological sites. Thousands to millions of pollen grains can be recovered from archaeological burial sediments that represent past ritual, medication and environment. Some pollen grain types can be similar to parasite eggs. Such a confusion is represented by the diagnosis of enterobiasis in ancient Iran. The authors of this study confused a joint-pine (Ephedra spp.) pollen grain with a pinworm egg. This paper describes the specific Ephedra pollen morphology that can be confused with pinworm eggs.

Citations

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Detection of Enterobius vermicularis in archived formalin-fixed paraffin-embedded (FFPE) appendectomy blocks: It’s potential to compare genetic variations based on mitochondrial DNA (cox1) gene
Maryam Haghshenas, Mona Koosha, Alireza Latifi, Elham Kazemirad, Arash Dehghan, Bahram Nikmanesh, Gholamreza Mowlavi, Ebrahim Shokoohi
PLOS ONE.2023; 18(2): e0281622. CrossRef
Comparative study of a broad qPCR panel and centrifugal flotation for detection of gastrointestinal parasites in fecal samples from dogs and cats in the United States
Christian M. Leutenegger, Cecilia E. Lozoya, Jeffrey Tereski, Jan Andrews, Kelly D. Mitchell, Cathy Meeks, Jennifer L. Willcox, Gregory Freeman, Holly L. Richmond, Christian Savard, Michelle D. Evason
Parasites & Vectors.2023;[Epub] CrossRef
A novel use of a geometric morphometric technique to distinguish human parasite eggs of twelve different species
Nantana Suwandittakul, Mathirut Mungthin, Kewarin Kuntawong, Sedthapong Laojun, Siripong Pimsuka, Tanawat Chaiphongpachara
Experimental Parasitology.2022; 238: 108281. CrossRef
The development of an artificial intelligence-based digital pathology for neglected tropical diseases: A platform specific analysis of the World Health Organization diagnostic target product profile for soil-transmitted helminthiasis
Peter Ward, Lindsay A. Broadfield, Peter Dahlberg, Gemechu Leta, Zeleke Mekonnen, Betty Nabatte, Narcis Kabatereine, Alan Brooks, Kristina M. Orrling, Mireille Gomes, Sofie Van Hoecke, Bruno Levecke, Lieven J. Stuyver
Frontiers in Tropical Diseases.2022;[Epub] CrossRef
Paleoparasitology and archaeoparasitology in Iran: A retrospective in differential diagnosis
Alireza Sazmand
International Journal of Paleopathology.2021; 32: 50. CrossRef
Paleomicrobiology of the human digestive tract: A review
Riccardo Nodari, Michel Drancourt, Rémi Barbieri
Microbial Pathogenesis.2021; 157: 104972. CrossRef
Attempting to simplify methods in parasitology of archaeological sediments: An examination of taphonomic aspects
Aida Romera Barbera, Darwin Hertzel, Karl J. Reinhard
Journal of Archaeological Science: Reports.2020; 33: 102522. CrossRef

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Assessing the Parasitic Burden in a Late Antique Florentine Emergency Burial Site: K?vin Roche, Elsa Pacciani, Raffaella Bianucci, Matthieu Le Bailly; Korean J Parasitol 2019;57(6):587-593.
Published online December 31, 2019; DOI: https://doi.org/10.3347/kjp.2019.57.6.587

Abstract
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Excavation (2008-2014) carried out under the Uffizi Gallery (Florence, Italy) led to the discovery of 75 individuals, mostly buried in multiple graves. Based on Roman minted coins, the graves were preliminarily dated between the second half of the 4th and the beginning of the 5th centuries CE. Taphonomy showed that this was an emergency burial site associated with a catastrophic event, possibly an epidemic of unknown etiology with high mortality rates. In this perspective, paleoparasitological investigations were performed on 18 individuals exhumed from 9 multiple graves to assess the burden of gastrointestinal parasitism. Five out of eighteen individuals (27.7%) tested positive for ascarid-type remains; these are considered as “decorticated” Ascaris eggs, which have lost their outer mammillated coat. Roundworms (genus Ascaris) commonly infest human populations under dire sanitary conditions. Archaeological and historical evidence indicates that Florentia suffered a period of economic crisis between the end of 4th and the beginning of the 5th centuries CE, and that the aqueduct was severely damaged at the beginning of the 4th century CE, possibly during the siege of the Goths (406 CE). It is more than plausible that the epidemic, possibly coupled with the disruption of the aqueduct, deeply affected the living conditions of these individuals. A 27.7% frequency suggests that ascariasis was widespread in this population. This investigation exemplifies how paleoparasitological information can be retrieved from the analysis of sediments sampled in cemeteries, thus allowing a better assessment of the varying frequency of parasitic infections among ancient populations.

Citations

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Evidence of parasites in the ancient city of Delos (Greece) during the hellenistic period
Kévin Roche, Nicolas Capelli, Alain Bouet, Matthieu Le Bailly
Archaeological and Anthropological Sciences.2025;[Epub] CrossRef
Using intestinal parasites to identify the utilization of archaeological structures: A 12th-13th century sewer systems from an Islamic funduq (Murcia, Spain)
Ramón López-Gijón, Alicia Hernández-Robles, Salvatore Duras, Mireia Celma, Ana Curto, José Ángel González-Ballesteros, Benjamin Dufour, Matthieu Le Bailly, Jorge A. Eiroa
Journal of Archaeological Science.2025; 180: 106266. CrossRef
Sedimentary ancient DNA as part of a multimethod paleoparasitology approach reveals temporal trends in human parasitic burden in the Roman period
Marissa L. Ledger, Tyler J. Murchie, Zachery Dickson, Melanie Kuch, Scott D. Haddow, Christopher J. Knüsel, Gil J. Stein, Mike Parker Pearson, Rachel Ballantyne, Mark Knight, Koen Deforce, Maureen Carroll, Candace Rice, Tyler Franconi, Nataša Šarkić, Saša
PLOS Neglected Tropical Diseases.2025; 19(6): e0013135. CrossRef
Paleoparasitological evidence of helminth infections in individuals from two Late Iron Age necropolises in Northern Italy (3rd-1st c. BCE)
Ramón López-Gijón, Zita Laffranchi, Wolf-Rüdiger Teegen, Matthieu Le Bailly, Salvatore Duras, Kévin Roche, Daniele Vitali, Luciano Salzani, Albert Zink, Marco Milella
International Journal of Paleopathology.2025; 51: 1. CrossRef
Palaeoparasitological evidence for a possible sanitary stone vessel from the Roman city of Viminacium, Serbia
Nemanja Marković, Angelina Raičković Savić, Ana Mitić, Piers D. Mitchell
Journal of Archaeological Science: Reports.2024; 57: 104671. CrossRef
Intestinal Parasitic Infection in Roman Britain: Integrating New Evidence from Roman London
Marissa L. Ledger, Rebecca Redfern, Piers D. Mitchell
Britannia.2024; 55: 99. CrossRef
Implications of the prevalence of Ascaris sp. in the funerary context of a Late Antique population (5th-7th c.) in Granada (Spain)
Ramón López-Gijón, Edgard Camarós, Ángel Rubio-Salvador, Salvatore Duras, Miguel C. Botella-López, Inmaculada Alemán-Aguilera, Ángel Rodríguez-Aguilera, Macarena Bustamante-Álvarez, Lydia P. Sánchez-Barba, Benjamin Dufour, Matthieu Le Bailly
International Journal of Paleopathology.2023; 43: 45. CrossRef
Intestinal parasite infection in the Augustinian friars and general population of medieval Cambridge, UK
Tianyi Wang, Craig Cessford, Jenna M. Dittmar, Sarah Inskip, Peter M. Jones, Piers D. Mitchell
International Journal of Paleopathology.2022; 39: 115. CrossRef
Using parasite analysis to identify ancient chamber pots: An example of the fifth century CE from Gerace, Sicily, Italy
Sophie Rabinow, Tianyi Wang, Roger J.A. Wilson, Piers D. Mitchell
Journal of Archaeological Science: Reports.2022; 42: 103349. CrossRef
Reconstructing the history of helminth prevalence in the UK
Hannah Ryan, Patrik G Flammer, Rebecca Nicholson, Louise Loe, Ben Reeves, Enid Allison, Christopher Guy, Inés Lopez Doriga, Tony Waldron, Don Walker, Claas Kirchhelle, Greger Larson, Adrian L Smith, Subash Babu
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UBC Excavations of the Roman Villa at Gerace, Sicily: Results of the 2019 Season
R.J.A. Wilson
Mouseion.2022; 18(3): 379. CrossRef
Gastrointestinal parasite burden in 4th-5th c. CE Florence highlighted by microscopy and paleogenetics
Kévin Roche, Nicolas Capelli, Elsa Pacciani, Paolo Lelli, Pasquino Pallecchi, Raffaella Bianucci, Matthieu Le Bailly
Infection, Genetics and Evolution.2021; 90: 104713. CrossRef
Gastrointestinal infection in Italy during the Roman Imperial and Longobard periods: A paleoparasitological analysis of sediment from skeletal remains and sewer drains
Marissa L. Ledger, Ileana Micarelli, Devin Ward, Tracy L. Prowse, Maureen Carroll, Kristina Killgrove, Candace Rice, Tyler Franconi, Mary Anne Tafuri, Giorgio Manzi, Piers D. Mitchell
International Journal of Paleopathology.2021; 33: 61. CrossRef
Accessing Ancient Population Lifeways through the Study of Gastrointestinal Parasites: Paleoparasitology
Matthieu Le Bailly, Céline Maicher, Kévin Roche, Benjamin Dufour
Applied Sciences.2021; 11(11): 4868. CrossRef
Attempting to simplify methods in parasitology of archaeological sediments: An examination of taphonomic aspects
Aida Romera Barbera, Darwin Hertzel, Karl J. Reinhard
Journal of Archaeological Science: Reports.2020; 33: 102522. CrossRef
Intestinal Parasitic Infection in the Eastern Roman Empire During the Imperial Period and Late Antiquity
Marissa L. Ledger, Erica Rowan, Frances Gallart Marques, John H. Sigmier, Nataša Šarkić, Saša Redžić, Nicholas D. Cahill, Piers D. Mitchell
American Journal of Archaeology.2020; 124(4): 631. CrossRef

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Original Article

Application of Autofluorescence for Confocal Microscopy to Aid in Archaeoparasitological Analyses: Johnica Jo Morrow, Christian Elowsky; Korean J Parasitol 2019;57(6):581-585.
Published online December 31, 2019; DOI: https://doi.org/10.3347/kjp.2019.57.6.581

Abstract
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Confocal laser scanning microscopy (CLSM) was used to examine archaeoparasitological specimens from coprolites associated with La Cueva de los Muertos Chiquitos (CMC) located near present-day Durango, Mexico. The eggs for 4 different types of parasites recovered from CMC coprolites were imaged using CLSM to assist with identification efforts. While some of the parasite eggs recovered from CMC coprolites were readily identified using standard light microscopy (LM), CLSM provided useful data for more challenging identifications by highlighting subtle morphological features and enhancing visualization of parasite egg anatomy. While other advanced microscopy techniques, such as scanning electron microscopy (SEM), may also detect cryptic identifying characters, CLSM is less destructive to the specimens. Utilizing CLSM allows for subsequent examinations, such as molecular analyses, that cannot be performed following SEM sample preparation and imaging. Furthermore, CLSM detects intrinsic autofluorescence molecules, making improved identification independent of resource and time-intensive protocols. These aspects of CLSM make it an excellent method for assisting in taxonomic identification and for acquiring more detailed images of archaeoparasitological specimens.

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Label-free spectral confocal reflectance microscopy for ex vivo neuroimaging and neural structure visualization
Reinher Pimentel-Domínguez, Rainald Pablo Ordaz, Abraham J. Cisneros-Mejorado, Rogelio O. Arellano, Remy Avila
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Exploring confocal laser scanning microscopy (CLSM) and fluorescence staining as a tool for imaging and quantifying traces of marine microbioerosion and their trace‐making microendoliths
Philipp‐Konrad Schätzle, Max Wisshak, Andreas Bick, André Freiwald, Alexander Kieneke
Journal of Microscopy.2021; 284(2): 118. CrossRef

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Brief Communication

Effect of Temperature on the Killing of Opisthorchis viverrini Eggs In Vitro: Parichart Boueroy, Kunyarat Duenngai, Chatanun Eamudomkarn, Panupan Sripan, Thidarut Boonmars, Benjamabhorn Pumhirunroj, Atchara Artchayasawat, Jiraporn Songsri, Kanpicha Chomphumee, Panaratana Rattanasuwan, Porntip Laummaunwai, Sukhonthip Khueangchiangkhwang, Sirintip Boonjaraspinyo; Korean J Parasitol 2019;57(1):49-53.
Published online February 26, 2019; DOI: https://doi.org/10.3347/kjp.2019.57.1.49

Abstract
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Contaminated liver fluke egg in the environment has led to the high prevalence of human opisthorchiasis associated with cholangiocarcinoma in Southeast Asia. To find the effective lessening methods of Opisthorchis viverrini eggs in the contaminated environment, we investigated the temperature conditions for killing of these trematode eggs in vitro. Numerous O. viverrini eggs were obtained in the proximal part of uteri of adult worms from experimental hamsters. Mature eggs with miracidium were allocated by experimental groups (2 control: positive and negative and 4 treatment: 50, 60, 70, and 80°C) with 0.85% saline, and treated by the experimental plan. Eggs in each experimental groups were observed under the confocal microscope after stain with Propidium Iodide (PI) to evaluate the effect of temperatures. Eggs in 70 and 80°C groups were all killed after over 10 min heated. Majority of eggs in 60°C (10, 15, and 30 min heated), 70 and 80°C (5 min heated) groups were inactivated. However in 50°C group, below half of eggs were to be killed in all time lapse (10, 15 and 30 min). In order to prevent O. viverrini infection and cholangiocarcinoma, direct treatment of sewage by heating at 70 or 80°C at least 10 min is essential. Therefore, treatment of O. viverrini eggs at a high temperature is a potential method for controlling egg contamination in sewage.

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Development of a Dielectric Heating System for Selective Thermal Targeting of Liver Fluke Regions in Cirrhinus microlepis
Supatinee Kornsing, Sirigiet Phunklang, Chanchai Thongsopa, Piyaporn Krachodnok, Nuchanart Santalunai, Samran Santalunai
Applied Sciences.2025; 15(10): 5466. CrossRef
Viability of Trichinella spiralis in traditional sour pork fermentation and its inactivation by microwave heating: Implications for zoonotic risk and food safety
Atchara Artchayasawat, Benjamabhorn Pumhirunroj, Sukhonthip Khueangchiangkhwang, Thidarut Boonmars, Parichart Boueroy, Porntip Laummaunwai, Panaratana Rattanasuwan
Veterinary World.2025; : 1660. CrossRef

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Original Article

Survey on Intestinal Helminthic Infection Status of Students in Two Counties, Hadong-gun and Goseong-gun, Korea: Young Yil Bahk, Yun-Kyu Park, Byoung-Kuk Na, Woon-Mok Sohn, Sung-Jong Hong, Jong-Yil Chai, Tong-Soo Kim; Korean J Parasitol 2018;56(4):335-339.
Published online August 31, 2018; DOI: https://doi.org/10.3347/kjp.2018.56.4.335

Abstract
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This study was conducted to investigate the prevalence of intestinal parasites among students from Goseonggun, Gangwon-do and Hadong-gun, Gyeongsangnam-do as typical low and high endemic counties. From May to July 2017, a total of 2,033 fecal samples were collected at 27 elementary, 10 junior high, and 8 high schools from 2 counties and examined by the Kato-Katz technique for egg-positive surveys (Collection rate: 37.02% [2,033/5,492]). Of the participants examined, 13 (0.64%) were found to harbor eggs of 3 parasitic species, Trichuris trichiura, Clonorchis sinensis and Metagonimus yokogawai. Based on the regional distribution, the egg-positive rate in Goseong-gun was 0% (0/550) and that in Hadong-gun was 0.88% (13/1,483). The positive rates for C. sinensis, M. yokogawai, and T. trichiura in Hadonggun were 0.20% (3/1,483), 0.61% (9/1,483), and 0.07% (1/1,483), respectively. The present survey showed that the prevalence of parasitic infection among students is currently very low even in remote, previously endemic areas, and the present status of parasitic diseases can be summarized as some transmission of fish/food-borne trematodes. Thus, it is necessary to carefully, continuously monitor the trematode infection status, particularly of C. sinensis and M. yokogawai.

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The spatial-temporal risk profiling of Clonorchis sinensis infection over 50 years implies the effectiveness of control programs in South Korea: a geostatistical modeling study
Hai-Yan Xiao, Jong-Yil Chai, Yue-Yi Fang, Ying-Si Lai
The Lancet Regional Health - Western Pacific.2023; 33: 100697. CrossRef
Global prevalence of 4 neglected foodborne trematodes targeted for control by WHO: A scoping review to highlight the gaps
Rachel Tidman, Kaushi S. T. Kanankege, Mathieu Bangert, Bernadette Abela-Ridder, Paul R. Torgerson
PLOS Neglected Tropical Diseases.2023; 17(3): e0011073. CrossRef
Risk Factors for Clonorchis sinensis Infection in Residents of Binyang, Guangxi: A Cross-Sectional and Logistic Analysis Study
Meng Xu, Yanyan Jiang, Jianhai Yin, Shengkui Cao, Yujuan Shen, Jianping Cao
Frontiers in Public Health.2021;[Epub] CrossRef
Currently Available Monitoring and Surveillance Systems for Taenia spp., Echinococcus spp., Schistosoma spp., and Soil-Transmitted Helminths at the Control/Elimination Stage: A Systematic Review
Ganna Saelens, Sarah Gabriël
Pathogens.2020; 9(1): 47. CrossRef
Status of common parasitic diseases in Korea in 2019
Sun Huh
Journal of the Korean Medical Association.2019; 62(8): 437. CrossRef
Blood Pressure and the Risk of Death From Non-cardiovascular Diseases: A Population-based Cohort Study of Korean Adults
Jeoungbin Choi, Jieun Jang, Yoonsuk An, Sue K. Park
Journal of Preventive Medicine and Public Health.2018; 51(6): 298. CrossRef

7,309 View
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Crossref

Brief Communication

Discovery of Parasite Eggs in Archeological Residence during the 15th Century in Seoul, Korea: Pyo Yeon Cho, Jung-Min Park, Myeong-Ki Hwang, Seo Hye Park, Yun-Kyu Park, Bo-Young Jeon, Tong-Soo Kim, Hyeong-Woo Lee; Korean J Parasitol 2017;55(3):357-361.
Published online June 30, 2017; DOI: https://doi.org/10.3347/kjp.2017.55.3.357

Abstract
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During civil engineering construction near Sejong-ro, Jongro-ku, Seoul, cultural sites were found that are thought to have been built in the 15th century. This area was home to many different people as well as the leaders of the Yi dynasty. To gain further insight into the life styles of the inhabitants of the old capital, soil samples were collected from various areas such as toilets, water foundations, and drainage ways. Parasite eggs were examined by microscopy after 5 g soil samples were rehydrated in 0.5% trisodium phosphate solution. A total of 662 parasite eggs from 7 species were found. Species with the highest number of eggs found were Ascaris lumbricoides (n=483), followed by Trichuris trichiura (138), Trichuris vulpis (21), Fasciola hepatica (8), Clonorchis sinensis (6), Paragonimus westermani (4), and Metagonimus yokogawai (2). These findings indirectly indicate the food habits of the people in Yi dynasty.

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Clonorchis sinensis and Cholangiocarcinoma
Eun-Min Kim, Sung-Tae Hong
Journal of Korean Medical Science.2025;[Epub] CrossRef
Paleoparasitology research on ancient helminth eggs and larvae in the Republic of Korea
Jong-Yil Chai, Min Seo, Dong Hoon Shin
Parasites, Hosts and Diseases.2023; 61(4): 345. CrossRef
Green vegetable juice as a potential source of human fascioliasis in Korea
Sungim Choi, Sunghee Park, Sooji Hong, Hyejoo Shin, Bong-Kwang Jung, Min Jae Kim
One Health.2022; 15: 100441. CrossRef
Opisthorchis felineus as the basis for the reconstruction of migrations using archaeoparasitological materials
Sergey Slepchenko
Journal of Archaeological Science: Reports.2020; 33: 102548. CrossRef
Archaeoparasitological Analysis of Samples from the Cultural Layer of Nadym Gorodok dated Back to the 14th-Late 18th Centuries
Sergey Mikhailovich Slepchenko, Oleg Viktorovich Kardash, Vyacheslav Sergeyevich Slavinsky, Sergey Nikolaevich Ivanov, Rakultseva Daria Sergeyevna, Alexander Alekseevich Tsybankov, Dong Hoon Shin
The Korean Journal of Parasitology.2019; 57(6): 567. CrossRef

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Case Report

A Case of Ectopic Peritoneal Paragonimiasis Mimicking Diverticulitis or Abdominal Abscess: Min Jae Kim, Sung-Han Kim, Sang-Oh Lee, Sang-Ho Choi, Yang Soo Kim, Jun Hee Woo, Yong Sik Yoon, Kyung Won Kim, Jaeeun Cho, Jong-Yil Chai, Yong Pil Chong; Korean J Parasitol 2017;55(3):313-317.
Published online June 30, 2017; DOI: https://doi.org/10.3347/kjp.2017.55.3.313

Abstract
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Paragonimiasis is a parasitic disease caused by Paragnonimus species. The primary site of infection is the lung, and extrapulmonary involvement is also reported. When infected with Paragonimus westermani, which is the dominant species in Korea, the central nervous system is frequently involved along with the liver, intestine, peritoneal cavity, retroperitoneum, and abdominal wall. Ectopic paragonimiasis raises diagnostic challenge since it is uncommon and may be confused with malignancy or other inflammatory diseases. Here, we report an ectopic paragonimiasis case initially presented with recurrent abdominal pain. The patient developed abdominal pain 3 times for the previous 3 years and the computed tomography (CT) of the abdomen revealed fluid collection with wall enhancement. Recurrent diverticulitis was initially suspected and part of the ascending colon was resected. However, the specimen showed intact colon wall without evidence of diverticulitis and multiple parasite eggs and granulomas were found instead. The size of about 70 μm, the presence of an operculum and relatively thick egg shell suggested eggs of Paragonimus species. With appropriate exposure history and a positive antibody test, the definitive diagnosis was made as peritoneal paragonimiasis.

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Xia Wu, Zhengfu Li, Dan Yang, Zhangli Peng, Nana Li, Yuanbo Lan, Ling Chen
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Mohamed A. Farag, Somaia T. Mansour, Roua A. Nouh, Amira R. Khattab
Journal of Food Safety.2023;[Epub] CrossRef
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Pathum Sookaromdee, Viroj Wiwanitkit
Formosan Journal of Surgery.2023; 56(6): 200. CrossRef
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Ji Sung Ha, Jang Young Lee, Won Young Sung, Sang Won Seo, Won Suk Lee
Asian Cardiovascular and Thoracic Annals.2022; 30(3): 339. CrossRef
Ectopic peritoneal paragonimiasis mimicking tuberculous peritonitis: A care report
Jung Woo Choi, Chang Min Lee, Seong Je Kim, Se In Hah, Ji Yoon Kwak, Hyun Chin Cho, Chang Yoon Ha, Woon Tae Jung, Ok Jae Lee
World Journal of Clinical Cases.2022; 10(16): 5359. CrossRef
General overview of the current status of human foodborne trematodiasis
Jong-Yil Chai, Bong-Kwang Jung
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One delayed diagnosis of paragonimiasis case and literature review
Luxia Kong, Lijuan Hua, Qian Liu, Chen Bao, Jiannan Hu, Shuyun Xu
Respirology Case Reports.2021;[Epub] CrossRef
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Chul Kyu Roh, Min Jung Jung
Annals of Medicine and Surgery.2021; 69: 102754. CrossRef
A case of group infections with Paraginimus species in Henan, Central China
Wei-qi Chen, Yan Deng, Ya-lan Zhang, Lin Ai, Jia-xu Chen, Xi-meng Lin, Xiao-bo Du, Peng Li, Rui-min Zhou, Cheng-yun Yang, Ying Liu, Hong-wei Zhang, Bian-li Xu, Yu-ling Zhao
Acta Tropica.2020; 202: 105111. CrossRef
Paragonimus westermani infection manifesting as a pulmonary cavity and adrenal gland mass: A case report
Yong Shik Kwon, Hye Won Lee, Hyun Jung Kim
Journal of Infection and Chemotherapy.2019; 25(3): 200. CrossRef
A Paragonimiasis Mimicking Gastric Submucosal Tumor
Hyeri Seok, Tae Sung Sohn, Kyong Ran Peck
Journal of Korean Medical Science.2019;[Epub] CrossRef
Simultaneous Paragonimus infection involving the breast and lung: A case report
Moon Young Oh, Ajung Chu, Jeong Hwan Park, Jong Yoon Lee, Eun Youn Roh, Young Jun Chai, Ki-Tae Hwang
World Journal of Clinical Cases.2019; 7(24): 4292. CrossRef

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Original Articles

First Paleoparasitological Report on the Animal Feces of Bronze Age Excavated from Shahr-e Sukhteh, Iran: Mahsasadat Makki, Jean Dupouy-Camet, Seyed Mansour Seyed Sajjadi, Saied Reza Naddaf, Iraj Mobedi, Mostafa Rezaeian, Mehdi Mohebali, Gholamreza Mowlavi; Korean J Parasitol 2017;55(2):197-201.
Published online April 30, 2017; DOI: https://doi.org/10.3347/kjp.2017.55.2.197

Abstract
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Shahr-e Sukhteh (meaning burnt city in Persian) in Iran is an archeological site dated back to around 3,2001,800 BC. It is located in Sistan and Baluchistan Province of Iran and known as the junction of Bronze Age trade routes crossing the Iranian plateau. It was appointed as current study area for paleoparasitological investigations. Excavations at this site have revealed various archeological materials since 1967. In the present study, sheep and carnivore coprolites excavated from this site were analyzed by means of rehydration technique using TSP solution for finding helminth eggs. Dicrocoelium dendriticum, Capillaria sp., and Taenia sp. eggs were identified, while some other objects similar to Anoplocephalidae and Toxocara spp. eggs were also retrieved from the samples but their measured parameters did not match those of these species. The present paper illustrates the first paleoparasitological findings of Bronze Age in eastern Iran supporting the economic activities, peopling, and communication as well as the appropriate condition for zoonotic helminthiasis life cycle in Shahr-e Sukhteh archeological site.

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First molecular data on the human roundworm Ascaris lumbricoides species complex from the Bronze and Iron Age in Hallstatt, Austria
Elisabeth Barsch, Kerstin Kowarik, Katharina Rodler, Christoph Hörweg, Hans Reschreiter, Helmut Sattmann, Julia Walochnik
Scientific Reports.2023;[Epub] CrossRef
Gastrointestinal parasites of domestic sheep from Patagonia throughout historical times: A paleoparasitological approach
María Ornela Beltrame, Gloria Sofía Moviglia, Daniela De Tommaso, Silvina Quintana
Veterinary Parasitology: Regional Studies and Reports.2023; 44: 100915. CrossRef
Paleoparasitology research on ancient helminth eggs and larvae in the Republic of Korea
Jong-Yil Chai, Min Seo, Dong Hoon Shin
Parasites, Hosts and Diseases.2023; 61(4): 345. CrossRef
Paleoparasitology and archaeoparasitology in Iran: A retrospective in differential diagnosis
Alireza Sazmand
International Journal of Paleopathology.2021; 32: 50. CrossRef
Worldwide paleodistribution of capillariid parasites: Paleoparasitology, current status of phylogeny and taxonomic perspectives
Victor Hugo Borba, José Roberto Machado-Silva, Matthieu Le Bailly, Alena Mayo Iñiguez, Ben J Mans
PLOS ONE.2019; 14(4): e0216150. CrossRef

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181 Download
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Development of Urinary Bladder Pre-Neoplasia by Schistosoma haematobium Eggs and Chemical Carcinogen in Mice: Bayissa Chala, Min-Ho Choi, Kyung Chul Moon, Hyung Suk Kim, Cheol Kwak, Sung-Tae Hong; Korean J Parasitol 2017;55(1):21-29.
Published online February 28, 2017; DOI: https://doi.org/10.3347/kjp.2017.55.1.21

Abstract
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Schistosoma haematobium is a biocarcinogen of human urinary bladder (UB). The present study investigated developing UB cancer mouse model by injecting S. haematobium eggs into the bladder wall and introduction of chemical carcinogens. Histopathological findings showed mild hyperplasia to epithelial vacuolar change, and high grade dysplasia. Squamous metaplasia was observed in the S. haematobium eggs+NDMA group at week 12 but not in other groups. Immunohistochemistry revealed significantly high expression of Ki-67 in urothelial epithelial cells of the S. haematobium eggs+BBN group at week 20. The qRT-PCR showed high expression of p53 gene in S. haematobium eggs group at week 4 and S. haematobium eggs+BBN group at week 20. E-cadherin and vimentin showed contrasting expression in S. haematobium eggs+BBN group. Such inverse expression of E-cadherin and vimentin may indicate epithelial mesenchymal transition in the UB tissue. In conclusion, S. haematobium eggs and nitrosamines may transform UB cells into squamous metaplasia and dysplasia in correlation with increased expression of Ki-67. Marked decrease in E-cadherin and increase in p53 and vimentin expressions may support the transformation. The present study introduces a promising modified animal model for UB cancer study using S. haematobium eggs.

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Roles of microRNAs and Long Non-Coding RNAs Encoded by Parasitic Helminths in Human Carcinogenesis
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International Journal of Molecular Sciences.2022; 23(15): 8173. CrossRef
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Yifan Wu, Megan Duffey, Saira Elizabeth Alex, Charlie Suarez-Reyes, Eva H. Clark, Jill E. Weatherhead
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Muhammad Nur Adam Hatta, Ezanee Azlina Mohamad Hanif, Siok-Fong Chin, Hui-min Neoh
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Dalia S. Ashour, Ahmad A. Othman
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Mohamed S. Zaghloul, Tarek M. Zaghloul, Mai K. Bishr, Brian C. Baumann
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Differential responses of epithelial cells from urinary and biliary tract to eggs of Schistosoma haematobium and S. mansoni
Rafael Nacif-Pimenta, Alessandra da Silva Orfanó, Ilana A. Mosley, Shannon E. Karinshak, Kenji Ishida, Victoria H. Mann, Paulo Marcos Zech Coelho, José M. Correia da Costa, Michael H. Hsieh, Paul J. Brindley, Gabriel Rinaldi
Scientific Reports.2019;[Epub] CrossRef
Cytological and Wet Mount Microscopic Observations Made in Urine ofSchistosoma haematobium-Infected Children: Hint of the Implication in Bladder Cancer
Patience B. Tetteh-Quarcoo, Benjamin K. Akuetteh, Irene A. Owusu, Solomon E. Quayson, Simon K. Attah, Robert Armah, Emmanuel Afutu, Ama Afrah, Kantanka Addo-Osafo, Cecilia Smith, Richard K. Gyasi, Patrick F. Ayeh-Kumi
Canadian Journal of Infectious Diseases and Medical Microbiology.2019; 2019: 1. CrossRef
Neglected Agent Eminent Disease: Linking Human Helminthic Infection, Inflammation, and Malignancy
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Mini Review

Detection Trend of Helminth Eggs in the Strata Soil Samples from Ancient Historic Places of Korea: Min Seo, Jong-Yil Chai, Myeung Ju Kim, Sang Yuk Shim, Ho Chul Ki, Dong Hoon Shin; Korean J Parasitol 2016;54(5):555-563.
Published online October 31, 2016; DOI: https://doi.org/10.3347/kjp.2016.54.5.555

Abstract
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For several years, we have conducted a series of studies on the patterns of ancient parasitism prevailing in the soil of rural and urban areas of past Kingdom of Korea. Actually, during our survey of paleoparasitology in archaeological sites of Korean peninsula, numerous ancient parasite eggs were discovered in the samples from the city districts of Hansung (Joseon) and Buyeo (Baikje), the palace moat at Gyeongju (Silla), shell-midden site at Bonghwang-dong (Silla to Joseon), and the reservoir found in Hwawangsansung fortress (Silla). By the paleoparasitological studies, with respect to parasitism in the high-density populations of ancient towns and cities, we have managed to catch glimpses of the patterns prevalent therein: a serious parasitic contamination of the soil in ancient urban areas, but not in rural areas of the past. Our historical research also proposed the plausible mechanism of parasite infection very serious indeed among urban populations in Korean history. Although city dwelling doubtless has accrued significant benefits for people and populations with agriculture, it can be equally supposed that living in such highly populated areas might have facilitated the spread of parasite infection.

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Piers D. Mitchell
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A parasitological study on the possible toilet ruins of the Japanese colonial period in Korea
Jieun Kim, Min Seo, Hisashi Fujita, Jong Yil Chai, Jin Woo Park, Jun Won Jang, In Soo Jang, Dong Hoon Shin
Parasites, Hosts and Diseases.2023; 61(2): 198. CrossRef
トイレ考古学と考古寄生虫学
尚藤田, 宗河洪, 東勳申
Anthropological Science (Japanese Series).2023; 131(1): 9. CrossRef
Paleoparasitology research on ancient helminth eggs and larvae in the Republic of Korea
Jong-Yil Chai, Min Seo, Dong Hoon Shin
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Presence of Parasite Remains in Historical Contexts in the City of Córdoba, Argentina, in the Nineteenth Century
Darío Alejandro Ramirez, Henrik Bernhard Lindskoug, Rodrigo Nores
Latin American Antiquity.2022; 33(2): 395. CrossRef
Ancient Echinostome Eggs Discovered in Archaeological Strata Specimens from a Baekje Capital Ruins of South Korea
Min Seo, Sang-Yuck Shim, Hwa Young Lee, Yongjun Kim, Jong Ha Hong, Ji Eun Kim, Jong-Yil Chai, Dong Hoon Shin
Journal of Parasitology.2020; 106(1): 184. CrossRef
Beyond diversity loss and climate change: Impacts of Amazon deforestation on infectious diseases and public health
JOEL HENRIQUE ELLWANGER, BRUNA KULMANN-LEAL, VALÉRIA L. KAMINSKI, JACQUELINE MARÍA VALVERDE-VILLEGAS, ANA BEATRIZ G. DA VEIGA, FERNANDO R. SPILKI, PHILIP M. FEARNSIDE, LÍLIAN CAESAR, LEANDRO LUIZ GIATTI, GABRIEL L. WALLAU, SABRINA E.M. ALMEIDA, MAURO R. B
Anais da Academia Brasileira de Ciências.2020;[Epub] CrossRef
Review of Successful Control of Parasitic Infections in Korea
Sung-Tae Hong, Tai-Soon Yong
Infection & Chemotherapy.2020; 52(3): 427. CrossRef
Ancient Soil-Transmitted Parasite Eggs Detected from the Sixth Century Three Kingdom Period Silla Tomb
Min Seo, Chang Seok Oh, Jong Ha Hong, Jong-Yil Chai, Jin Og Ju, Dong Hoon Shin
Journal of Korean Medical Science.2018;[Epub] CrossRef
Archaeoparasitological Strategy Based on the Microscopic Examinations of Prehistoric Samples and the Recent Report on the Difference in the Prevalence of Soil Transmitted Helminthic Infections in the Indian Subcontinent
Dong Hoon Shin, Yong Jun Kim, Ravindra Singh Bisht, Vivek Dangi, Prabodh Shirvalkar, Nilesh Jadhav, Chang Seok Oh, Jong Ha Hong, Jong Yil Chai, Min Seo, Vasant Shinde
Ancient Asia.2018;[Epub] CrossRef
Discovery of Parasite Eggs in Archeological Residence during the 15th Century in Seoul, Korea
Pyo Yeon Cho, Jung-Min Park, Myeong-Ki Hwang, Seo Hye Park, Yun-Kyu Park, Bo-Young Jeon, Tong-Soo Kim, Hyeong-Woo Lee
The Korean Journal of Parasitology.2017; 55(3): 357. CrossRef
Historical Details about the Meat Consumption and Taeniases in Joseon Period of Korea
Dong Hoon Shin, Jong-Yil Chai, Jong Ha Hong, Min Seo
The Korean Journal of Parasitology.2017; 55(4): 457. CrossRef

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Brief Communications

Environmental Contamination by Echinococcus granulosus sensu lato Eggs in Relation to Slaughterhouses in Urban and Rural Areas in Tunisia: Raja Cha?bane-Banaoues, Myriam Oudni-M’rad, Selim M’rad, Habib Mezhoud, Hamouda Babba; Korean J Parasitol 2016;54(1):113-118.
Published online February 26, 2016; DOI: https://doi.org/10.3347/kjp.2016.54.1.113

Abstract
PDF

Hydatidosis has become a real concern for health care institutions and animal rearers in Tunisia. The Tunisian endemicity is aggravated by the growing number of dogs and the difficulty of getting rid of contaminated viscera because of the lack of equipment in most slaughterhouses. Therefore, microscopic and molecular tools were applied to evaluate the role of slaughterhouses in canine infection and Echinococcus granulosus sensu lato (s. l.) egg dissemination. Exposure risk to E. granulosus s. l. eggs in urban and rural areas was explored in order to implant preventive and adapted control strategies. Microscopic examinations detected taeniid eggs in 152 amongst 553 fecal samples. The copro-PCR demonstrated that 138 of 152 taeniid samples analyzed were positive for E. granulosus s. l. DNA. PCR-RFLP demonstrated that all isolated samples belonged to E. granulosus sensu stricto (s. s.). An important environmental contamination index (25.0%) by E. granulosus s. l. eggs was demonstrated. The average contamination index from the regions around slaughterhouses (23.3%; 95% CI: 17.7-28.9%) was in the same range as detected in areas located far from slaughterhouses (26.0%, 95% CI: 21.3-30.8%). Echinococcosis endemic areas were extended in both rural (29.9%, 95% CI: 24.8-34.9%) and urban locations (18.1%, 95% CI: 13.0-22.9%). The pathogen dissemination is related neither to the presence/absence of slaughterhouses nor to the location in urban or rural areas, but is probably influenced by human activities (home slaughtering) and behavior towards the infected viscera.

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Effects of Disinfectants on Larval Development of Ascaris suum Eggs: Ki-Seok Oh, Geon-Tae Kim, Kyu-Sung Ahn, Sung-Shik Shin; Korean J Parasitol 2016;54(1):103-107.
Published online February 26, 2016; DOI: https://doi.org/10.3347/kjp.2016.54.1.103

Abstract
PDF

The
objective
of this study was to evaluate the effects of several different commercial disinfectants on the embryogenic development of Ascaris suum eggs. A 1-ml aliquot of each disinfectant was mixed with approximately 40,000 decorticated or intact A. suum eggs in sterile tubes. After each treatment time (at 0.5, 1, 5, 10, 30, and 60 min), disinfectants were washed away, and egg suspensions were incubated at 25˚C in distilled water for development of larvae inside. At 3 weeks of incubation after exposure, ethanol, methanol, and chlorohexidin treatments did not affect the larval development of A. suum eggs, regardless of their concentration and treatment time. Among disinfectants tested in this study, 3% cresol, 0.2% sodium hypochlorite and 0.02% sodium hypochlorite delayed but not inactivated the embryonation of decorticated eggs at 3 weeks of incubation, because at 6 weeks of incubation, undeveloped eggs completed embryonation regardless of exposure time, except for 10% povidone iodine. When the albumin layer of A. suum eggs remained intact, however, even the 10% povidone iodine solution took at least 5 min to reasonably inactivate most eggs, but never completely kill them with even 60 min of exposure. This study demonstrated that the treatment of A. suum eggs with many commercially available disinfectants does not affect the embryonation. Although some disinfectants may delay or stop the embryonation of A. suum eggs, they can hardly kill them completely.

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V-shaped Pits in Regions of Ancient Baekje Kingdom Paleoparasitologically Confirmed as Likely Human-Waste Reservoirs: Dong Hoon Shin, Sang-Yuck Shim, Myeung Ju Kim, Chang Seok Oh, Mi-Hyun Lee, Suk Bae Jung, Geon Il Lee, Jong-Yil Chai, Min Seo; Korean J Parasitol 2014;52(5):569-573.
Published online October 22, 2014; DOI: https://doi.org/10.3347/kjp.2014.52.5.569

Abstract
PDF

In a paleo-parasitological analysis of soil samples obtained from V-shaped pits dating to the ancient Baekje period in Korean history, we discovered Ascaris lumbricoides, Trichuris trichiura, and Clonorchis sinensis eggs. In light of the samples' seriously contaminated state, the V-shaped pits might have served as toilets, cesspits, or dung heaps. For a long period of time, researchers scouring archaeological sites in Korea have had difficulties locating such structures. In this context then, the present report is unique because similar kind of the ancient ruins must become an ideal resource for successful sampling in our forthcoming paleoparasitological studies.

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Jong-Yil Chai, Min Seo, Dong Hoon Shin
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Helminth Eggs Detected in Soil Samples of a Possible Toilet Structure Found at the Capital Area of Ancient Baekje Kingdom of Korea
Chang Seok Oh, Sang-Yuck Shim, Yongjun Kim, Jong Ha Hong, Jong-Yil Chai, Hisashi Fujita, Min Seo, Dong Hoon Shin
The Korean Journal of Parasitology.2021; 59(4): 393. CrossRef
Clonorchis sinensis and clonorchiasis
Byoung-Kuk Na, Jhang Ho Pak, Sung-Jong Hong
Acta Tropica.2020; 203: 105309. CrossRef
Metagenomics and microscope revealed T. trichiura and other intestinal parasites in a cesspit of an Italian nineteenth century aristocratic palace
Daniela Chessa, Manuela Murgia, Emanuela Sias, Massimo Deligios, Vittorio Mazzarello, Maura Fiamma, Daniela Rovina, Gabriele Carenti, Giulia Ganau, Elisabetta Pintore, Mauro Fiori, Gemma L. Kay, Alessandro Ponzeletti, Piero Cappuccinelli, David J. Kelvin,
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Archaeoparasitological Strategy Based on the Microscopic Examinations of Prehistoric Samples and the Recent Report on the Difference in the Prevalence of Soil Transmitted Helminthic Infections in the Indian Subcontinent
Dong Hoon Shin, Yong Jun Kim, Ravindra Singh Bisht, Vivek Dangi, Prabodh Shirvalkar, Nilesh Jadhav, Chang Seok Oh, Jong Ha Hong, Jong Yil Chai, Min Seo, Vasant Shinde
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Estimation of parasite infection prevalence of Joseon people by paleoparasitological data updates from the ancient feces of pre-modern Korean mummies
MIN SEO, CHANG SEOK OH, JONG HA HONG, JONG-YIL CHAI, SOON CHUL CHA, YURI BANG, IN GUK CHA, YANG GUN WI, JUNG MIN PARK, DONG HOON SHIN
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Discovery of Parasite Eggs in Archeological Residence during the 15th Century in Seoul, Korea
Pyo Yeon Cho, Jung-Min Park, Myeong-Ki Hwang, Seo Hye Park, Yun-Kyu Park, Bo-Young Jeon, Tong-Soo Kim, Hyeong-Woo Lee
The Korean Journal of Parasitology.2017; 55(3): 357. CrossRef

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Effects of Some Pesticides on Development of Ascaris suum Eggs: Yong-Man Yu, Jin-Won Kim, Won-Seok Na, Young-Nam Youn, In-Wook Choi, Young-Ha Lee; Korean J Parasitol 2014;52(1):111-115.
Published online February 19, 2014; DOI: https://doi.org/10.3347/kjp.2014.52.1.111

Abstract
PDF

To evaluate the effects of pesticides to parasite eggs, Ascaris suum eggs were incubated with 5 different pesticides (1:1,500-1:2,000 dilutions of 2% emamectin benzoate, 5% spinetoram, 5% indoxacarb, 1% deltamethrin, and 5% flufenoxuron; all v/v) at 20℃ for 6 weeks, and microscopically evaluated the egg survival and development on a weekly basis. The survival rate of A. suum eggs incubated in normal saline (control eggs) was 90±3% at 6 weeks. However, the survival rates of eggs treated with pesticides were 75-85% at this time, thus significantly lower than the control value. Larval development in control eggs commenced at 3 weeks, and 73±3% of eggs had internal larvae at 6 weeks. Larvae were evident in pesticide-treated eggs at 3-4 weeks, and the proportions of eggs carrying larvae at 6 weeks (36±3%-54±3%) were significantly lower than that of the control group. Thus, pesticides tested at levels similar to those used in agricultural practices exhibited low-level ovicidal activity and delayed embryogenesis of A. suum eggs, although some differences were evident among the tested pesticides.

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Investigating cement-based surfaces as a sustainable flooring solution to improve Ascaris Suum egg removal and inactivation in low-resource settings
Claire E. Anderson, Suhi Hanif, Jason Hernandez, Yoshika Crider, Michael Lepech, Sarah L. Billington, Alexandria B. Boehm, Jade Benjamin-Chung, Vito Colella,
PLOS Neglected Tropical Diseases.2025; 19(10): e0012919. CrossRef
Emamectin benzoate exposure impaired porcine oocyte maturation
Xin Wang, Mengya Zhang, Danruo Zhang, Yelian Yan, Qiuchen Liu, Changzhi Xu, Zhihua Zhu, Sucheng Wu, Yanfeng Zong, Zubing Cao, Yunhai Zhang
Theriogenology.2023; 206: 123. CrossRef
Study of disinvasive properties of innovative aldehyde disinfectant
A. P. Paliy, N. V. Sumakova, A. M. Mashkey, V. V. Gontar, A. P. Palii, D. A. Yurchenko
Journal for Veterinary Medicine, Biotechnology and Biosafety.2020; 6(2): 32. CrossRef
Assessment of the inhibitory effects of disinfectants on the embryonation of Ascaridia columbae eggs
Mohamed Bessat, Amira Dewair, Raffi V. Aroian
PLOS ONE.2019; 14(5): e0217551. CrossRef

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Prevalence of Enterobius vermicularis among Preschool Children in Muan-gun, Jeollanam-do, Korea: Sung-Hee Hong, Young-Il Jeong, Jin-Hee Lee, Shin-Hyeong Cho, Won-Ja Lee, Sang-Eun Lee; Korean J Parasitol 2012;50(3):259-262.
Published online August 13, 2012; DOI: https://doi.org/10.3347/kjp.2012.50.3.259

Abstract
PDF

We assessed the prevalence of Enterobius vermicularis infection and changes in the egg positive rate (EPR) over 1-year time, using the adhesive cellophane-tape perianal swab method in 2,347 preschool children in Muan-gun, Jeollanam-do, Republic of Korea in 2008 and 2009. The overall EPR for E. vermicularis was 4.1% in 2008 and 4.5% in 2009. A study population of 389 children was repeatedly examined for 2 years. Within this group, the EPR in 2009 was twice higher than in 2008, and the EPR of the group of 5-7-year-old children was significantly higher than that of other age groups. Moreover, in the group of 5-7-year-old children in 2009, the rates of positive and negative conversion were significantly higher and lower, respectively, than in other age groups. Conclusively, enterobiasis was prevalent during 2008-2009 among preschool children in Muan-gun, Jeollanam-do, and the increased EPR in 2009 was due to an increase in newly acquired infections among 5-7-year-old children.

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The Impact of Parasitic Infestation on Nutritional Status and Micronutrients among Children
Usama M. Alkholy, Sherief M. El Gebaly, Walaa E. M. A. Morsi, Waleed E. Elawamy, Samia E. Etewa, Asmaa M. Yousef, Eric Agola Lelo
Journal of Parasitology Research.2024; 2024: 1. CrossRef
Positive rates for Enterobius vermicularis eggs among preschool children in Yeosu-si, Jeollanam-do, Korea (2017-2021)
Myoung-Ro Lee, Hee-Eun Shin, Seon-Ok Back, Young-Ju Lee, Jung-Won Ju, Chun Soon Park, Hee-Il Lee
Parasites, Hosts and Diseases.2023; 61(1): 84. CrossRef
Enterobius vermicularis Infection among Preschool Children: A 12-Year (2008-2019) Survey in Large Cities and Provinces of the Republic of Korea
Hyejoo Shin, Bong-Kwang Jung, Seungwan Ryoo, Sooji Hong, Taehee Chang, Jiyeon Park, Keon Hoon Lee, Jeonggyu Lee, Jae Young Park, Hoo-Gn Jeoung, Jae Hyun Cho, Jong-Yil Chai
The Korean Journal of Parasitology.2021; 59(4): 421. CrossRef
Enterobius vermicularis infection and its risk factors among pre-school children in Taipei, Taiwan
Kuang-Yao Chen, Chuan-Min Yen, Kao-Pin Hwang, Lian-Chen Wang
Journal of Microbiology, Immunology and Infection.2018; 51(4): 559. CrossRef
The frequency of Enterobius vermicularis infection in children from Wielkopolska Voivodeship
Marta Siekierska, Karolina Kot, Natalia Łanocha-Arendarczyk, Danuta Kosik-Bogacka
Diagnostyka Laboratoryjna.2018; 54(1): 5. CrossRef
Prevalence ofEnterobius vermicularisamong preschool children in 2003 and 2013 in Xinxiang city, Henan province, Central China
Shuai Wang, Zhijun Yao, Yichen Hou, Dong Wang, Haizhu Zhang, Jingbo Ma, Luwen Zhang, Shiguo Liu
Parasite.2016; 23: 30. CrossRef
Risk factors for Enterobius vermicularis infection in children in Gaozhou, Guangdong, China
Hong-Mei Li, Chang-Hai Zhou, Zhi-Shi Li, Zhuo-Hui Deng, Cai-Wen Ruan, Qi-Ming Zhang, Ting-Jun Zhu, Long-Qi Xu, Ying-Dan Chen
Infectious Diseases of Poverty.2015;[Epub] CrossRef

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Quantitative Evaluation of Viability- and Apoptosis-Related Genes in Ascaris suum Eggs under Different Culture-Temperature Conditions: Yong-Man Yu, You-Hang Cho, Young-Nam Youn, Juan Hua Quan, In-Wook Choi, Young-Ha Lee; Korean J Parasitol 2012;50(3):243-247.
Published online August 13, 2012; DOI: https://doi.org/10.3347/kjp.2012.50.3.243

Abstract
PDF

Ascaris suum eggs are inactivated by composting conditions; however, it is difficult to find functional changes in heat-treated A. suum eggs. Here, unembryonated A. suum eggs were incubated at 20℃, 50℃, and 70℃ in vitro, and the gene expression levels related to viability, such as eukaryotic translation initiation factor 4E (IF4E), phosphofructokinase 1 (PFK1), and thioredoxin 1 (TRX1), and to apoptosis, such as apoptosis-inducing factor 1 (AIF1) and cell death protein 6 (CDP6), were evaluated by real-time quantitative RT-PCR. No prominent morphological alterations were noted in the eggs at 20℃ until day 10. In contrast, the eggs developed rapidly, and embryonated eggs and hatched larvae began to die, starting on day 2 at 50℃ and day 1 at 70℃. At 20℃, IF4E, PFK1, and TRX1 mRNA expression was significantly increased from days 2-4; however, AIF1 and CDP6 mRNA expression was not changed significantly. IF4E, PFK1, and TRX1 mRNA expression was markedly decreased from day 2 at 50℃ and 70℃, whereas AIF1 and CDP6 mRNA expression was significantly increased. The expressions of HSP70 and HSP90 were detected for 9-10 days at 20℃, for 3-5 days at 50℃, and for 2 days at 70℃. Taken together, incremental heat increases were associated with the rapid development of A. suum eggs, decreased expression of genes related to viability, and earlier expression of apoptosis-related genes, and finally these changes of viability- and apoptosis-related genes of A. suum eggs were associated with survival of the eggs under temperature stress.

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Original Articles

T Regulatory Cell Responses to Immunization with a Soluble Egg Antigen in Schistosoma mansoni-Infected Mice: Eman El-Ahwany, Ibrahim Rabia Bauiomy, Faten Nagy, Rabab Zalat, Ola Mahmoud, Suher Zada; Korean J Parasitol 2012;50(1):29-35.
Published online March 6, 2012; DOI: https://doi.org/10.3347/kjp.2012.50.1.29

Abstract
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The aim of the study is to characterize the phenotypes of CD4⁺ CD25⁺ T regulatory cells within the liver granulomas and association with both Foxp-3 gene expression and splenic cytokines. Na?ve C57BL/6 mice were intravenously injected with multiple doses of the soluble egg antigen (SEA) 7 days before cercarial infection. The immunized and infected control groups were sacrificed 8 and 16 weeks post-infection (PI). Histopathology, parasitological parameters, splenic phenotypes for T regulatory cells, the FOXP-3 expression in hepatic granuloma using real-time PCR, and the associated splenic cytokines were studied. Histopathological examination of the liver revealed remarkable increase in degenerated ova within hepatic granuloma which decreased in diameter at weeks 8 and 16 PI (P<0.01). The percentage of T regulatory cells (CD4⁺ CD25⁺) increased significantly (P<0.01) in the immunized group compared to the infected control at weeks 8 and 16 PI. The FOXP-3 expression in hepatic granulomas increased from 10 at week 8 to 30 fold at week 16 PI in the infected control group. However, its expression in the immunized group showed an increase from 30 at week 8 to 70 fold at week 16 PI. The splenic cytokine levels of pro-inflammatory cytokines, IFN-γ, IL-4, and TNF-α, showed significant decreases (P<0.05) compared to the infected control group. In conclusion, the magnitude and phenotype of the egg-induced effects on T helper responses were found to be controlled by a parallel response within the T regulatory population which provides protection in worm parasite-induced immunopathology.

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Morphologic and Genetic Identification of Taenia Tapeworms in Tanzania and DNA Genotyping of Taenia solium: Keeseon S. Eom, Jong-Yil Chai, Tai-Soon Yong, Duk-Young Min, Han-Jong Rim, Charles Kihamia, Hyeong-Kyu Jeon; Korean J Parasitol 2011;49(4):399-403.
Published online December 16, 2011; DOI: https://doi.org/10.3347/kjp.2011.49.4.399

Abstract
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Species identification of Taenia tapeworms was performed using morphologic observations and multiplex PCR and DNA sequencing of the mitochondrial cox1 gene. In 2008 and 2009, a total of 1,057 fecal samples were collected from residents of Kongwa district of Dodoma region, Tanzania, and examined microscopically for helminth eggs and proglottids. Of these, 4 Taenia egg positive cases were identified, and the eggs were subjected to DNA analysis. Several proglottids of Taenia solium were recovered from 1 of the 4 cases. This established that the species were T. solium (n=1) and T. saginata (n=3). One further T. solium specimen was found among 128 fecal samples collected from Mbulu district in Arusha, and this had an intact strobila with the scolex. Phylegenetic analysis of the mtDNA cox1 gene sequences of these 5 isolates showed that T. saginata was basal to the T. solium clade. The mitochondrial cox1 gene sequences of 3 of these Tanzanian isolates showed 99% similarity to T. saginata, and the other 2 isolates showed 100% similarity to T. solium. The present study has shown that Taenia tapeworms are endemic in Kongwa district of Tanzania, as well as in a previously identified Mbulu district. Both T. solium isolates were found to have an "African/Latin American" genotype (cox1).

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Justine Daudi Maganira, Winifrida Kidima, Chacha John Mwita, Peter Halvarsson, Johan Höglund
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Brief Communications

Discovery of Taeniid Eggs from A 17th Century Tomb in Korea: Hye-Jung Lee, Dong-Hoon Shin, Min Seo; Korean J Parasitol 2011;49(3):327-329.
Published online September 30, 2011; DOI: https://doi.org/10.3347/kjp.2011.49.3.327

Abstract
PDF

Even though Taenia spp. eggs are occasionally discovered from archeological remains around the world, these eggs have never been discovered in ancient samples from Korea. When we attempted to re-examine the archeological samples maintained in our collection, the eggs of Taenia spp., 5 in total number, were recovered from a tomb of Gongju-si. The eggs had radially striated embryophore, and 37.5-40.0 ?m×37.5 ?m in size. This is the first report on taeniid eggs from ancient samples of Korea, and it is suggested that intensive examination of voluminous archeological samples should be needed for identification of Taenia spp.

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Paleoparasitology research on ancient helminth eggs and larvae in the Republic of Korea
Jong-Yil Chai, Min Seo, Dong Hoon Shin
Parasites, Hosts and Diseases.2023; 61(4): 345. CrossRef
A comparison of ancient parasites as seen from archeological contexts and early medical texts in China
Hui-Yuan Yeh, Xiaoya Zhan, Wuyun Qi
International Journal of Paleopathology.2019; 25: 30. CrossRef
Discovery of Parasite Eggs in Archeological Residence during the 15th Century in Seoul, Korea
Pyo Yeon Cho, Jung-Min Park, Myeong-Ki Hwang, Seo Hye Park, Yun-Kyu Park, Bo-Young Jeon, Tong-Soo Kim, Hyeong-Woo Lee
The Korean Journal of Parasitology.2017; 55(3): 357. CrossRef
Paleoparasitological study on the soil sediment samples from archaeological sites of ancient Silla Kingdom in Korean peninsula
Myeung Ju Kim, Min Seo, Chang Seok Oh, Jong-Yil Chai, Jinju Lee, Gab-jin Kim, Won Young Ma, Soon Jo Choi, Karl Reinhard, Adauto Araujo, Dong Hoon Shin
Quaternary International.2016; 405: 80. CrossRef
The Changing Pattern of Parasitic Infection Among Korean Populations by Paleoparasitological Study of Joseon Dynasty Mummies
Min Seo, Chang Seok Oh, Jong-Yil Chai, Mi Sook Jeong, Sung Woo Hong, Young-Min Seo, Dong Hoon Shin
Journal of Parasitology.2014; 100(1): 147. CrossRef
Paleoparasitological Studies on Mummies of the Joseon Dynasty, Korea
Min Seo, Adauto Araujo, Karl Reinhard, Jong Yil Chai, Dong Hoon Shin
The Korean Journal of Parasitology.2014; 52(3): 235. CrossRef
Paleoparasitological Surveys for Detection of Helminth Eggs in Archaeological Sites of Jeolla-do and Jeju-do
Myeong-Ju Kim, Dong Hoon Shin, Mi-Jin Song, Hye-Young Song, Min Seo
The Korean Journal of Parasitology.2013; 51(4): 489. CrossRef
Food, parasites, and epidemiological transitions: A broad perspective
K.J. Reinhard, L.F. Ferreira, F. Bouchet, L. Sianto, J.M.F. Dutra, A. Iniguez, D. Leles, M. Le Bailly, M. Fugassa, E. Pucu, A. Araújo
International Journal of Paleopathology.2013; 3(3): 150. CrossRef

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Enterobius vermicularis Eggs Discovered in Coprolites from a Medieval Korean Mummy: Dong Hoon Shin, Chang Seok Oh, Jong-Yil Chai, Hye-Jung Lee, Min Seo; Korean J Parasitol 2011;49(3):323-326.
Published online September 30, 2011; DOI: https://doi.org/10.3347/kjp.2011.49.3.323

Abstract
PDF

While the presence of pinworm eggs in archaeological samples has been reported by many researchers in the New World, those have been detected very scarcely in the Old World, especially in East Asian countries. In fact, many parasite species were recovered from the archeological remains in Korea, eggs of Enterobius vermicularis had not been found. Recently, a female mummy buried in the 17th century was discovered in the Joseon tomb from Dangjin-gun, Chungcheongnam-do, Korea. After rehydration process for 12 days, investigations were carried on the luminal surface of the colon. From them, 3 eggs of E. vermicularis were recovered. They were elliptical, transparent with a thin egg shell, 50.3±5.2 ?m (length) and 28.2±3.9 ?m (width) in size. This is the first discovery of E. vermicularis eggs in East Asia.

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The microstratigraphy and depositional environments of Lida Ajer and Ngalau Gupin, two fossil-bearing tropical limestone caves of west Sumatra
Holly E. Anderson, Mike W. Morley, Conor McAdams, Jahdi Zaim, Yan Rizal, Aswan, Mika R. Puspaningrum, Agus T. Hascaryo, Gilbert J. Price, Julien Louys
Scientific Reports.2024;[Epub] CrossRef
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Reconstructing the history of helminth prevalence in the UK
Hannah Ryan, Patrik G Flammer, Rebecca Nicholson, Louise Loe, Ben Reeves, Enid Allison, Christopher Guy, Inés Lopez Doriga, Tony Waldron, Don Walker, Claas Kirchhelle, Greger Larson, Adrian L Smith, Subash Babu
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Matheus Lino, Daniela Leles, Alfredo P. Peña, Marina C. Vinaud
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Discovery of Parasite Eggs in Archeological Residence during the 15th Century in Seoul, Korea
Pyo Yeon Cho, Jung-Min Park, Myeong-Ki Hwang, Seo Hye Park, Yun-Kyu Park, Bo-Young Jeon, Tong-Soo Kim, Hyeong-Woo Lee
The Korean Journal of Parasitology.2017; 55(3): 357. CrossRef
A Case of Ectopic Paragonimiasis in a 17th Century Korean Mummy
D. H. Shin, Y.-S. Kim, D. S. Yoo, M. J. Kim, C. S. Oh, J. H. Hong, E. Lee, J. Y. Chai, M. Seo
Journal of Parasitology.2017; 103(4): 399. CrossRef
Paleoparasitological study on the soil sediment samples from archaeological sites of ancient Silla Kingdom in Korean peninsula
Myeung Ju Kim, Min Seo, Chang Seok Oh, Jong-Yil Chai, Jinju Lee, Gab-jin Kim, Won Young Ma, Soon Jo Choi, Karl Reinhard, Adauto Araujo, Dong Hoon Shin
Quaternary International.2016; 405: 80. CrossRef
Human Coprolites as a Source for Paleomicrobiology
Sandra Appelt, Michel Drancourt, Matthieu Le Bailly, Michel Drancourt, Didier Raoult
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You Soo Kim, Chang Seok Oh, Jong Ha Hong, Moon-Woo Seong, Dong Hoon Shin
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Min Seo, Adauto Araujo, Karl Reinhard, Jong Yil Chai, Dong Hoon Shin
The Korean Journal of Parasitology.2014; 52(3): 235. CrossRef
Radiological Diagnosis of Congenital Diaphragmatic Hernia in 17th Century Korean Mummy
Yi-Suk Kim, In Sun Lee, Go-Un Jung, Myeung Ju Kim, Chang Seok Oh, Dong Su Yoo, Won-Joon Lee, Eunju Lee, Soon Chul Cha, Dong Hoon Shin, Debbie Guatelli-Steinberg
PLoS ONE.2014; 9(7): e99779. CrossRef
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Journal of Parasitology.2014; 100(1): 147. CrossRef
Collaboration of Archaeologists, Historians and Bioarchaeologists During Removal of Clothing from Korean Mummy of Joseon Dynasty
Eun-Joo Lee, Chang Seok Oh, Se Gweon Yim, Jun Bum Park, Yi-Suk Kim, Myung Ho Shin, Soong Deok Lee, Dong Hoon Shin
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International Journal of Paleopathology.2013; 3(3): 150. CrossRef
Paleoparasitological Surveys for Detection of Helminth Eggs in Archaeological Sites of Jeolla-do and Jeju-do
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The Korean Journal of Parasitology.2013; 51(4): 489. CrossRef

11,529 View
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Crossref

Molecular Identification of Taenia Tapeworms by Cox1 Gene in Koh Kong, Cambodia: Hyeong-Kyu Jeon, Tai-Soon Yong, Woon-Mok Sohn, Jong-Yil Chai, Sung-Jong Hong, Eun-Taek Han, Hoo-Gn Jeong, Tep Chhakda, Muth Sinuon, Duong Socheat, Keeseon S. Eom; Korean J Parasitol 2011;49(2):195-197.
Published online June 14, 2011; DOI: https://doi.org/10.3347/kjp.2011.49.2.195

Abstract
PDF

We collected fecal samples from 21 individuals infected with Taenia tapeworms in Koh Kong Province, Cambodia, and performed nucleotide sequencing of the cox1 gene and multiplex PCR on the eggs for DNA differential diagnosis of human Taenia tapeworms. Genomic DNA was extracted from the eggs of a minimum number of 10 isolated from fecal samples. Using oligonucleotide primers Ta7126F, Ts7313F, Tso7466F, and Rev7915, the multiplex PCR assay proved useful for differentially diagnosing Taenia solium, Taenia saginata, and Taenia asiatica based on 706, 629, and 474 bp bands, respectively. All of the Taenia specimens from Kho Kong, Cambodia, were identified as either T. saginata (n=19) or T. solium (n=2) by cox1 sequencing and multiplex PCR.

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Tai-Soon Yong, Jong-Yil Chai, Woon-Mok Sohn, Keeseon S. Eom, Hoo-Gn Jeoung, Eui-Hyug Hoang, Cheong-Ha Yoon, Bong-Kwang Jung, Soon-Hyung Lee, Muth Sinuon, Duong Socheat
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Egg Laying Capacity of Haplorchis taichui (Digenea: Heterophyidae) in Humans: Megumi Sato, Surapol Sanguankiat, Somchit Pubampen, Teera Kusolsuk, Wanna Maipanich, Jitra Waikagul; Korean J Parasitol 2009;47(3):315-318.
Published online August 28, 2009; DOI: https://doi.org/10.3347/kjp.2009.47.3.315

Abstract
PDF

Quantitative fecal egg counts represented as the number of eggs per gram of feces (EPG) are generally a reliable parameter to estimate the worm burden of intestinal and hepatic parasitoses. Although Haplorchis taichui (Digenea: Heterophyidae) is one of the most common minute human intestinal flukes, little is known about the relationship between EPG and the actual worm burden in patients or the severity of the disease. In the present study, fecal samples were collected from 25 villagers in northern Thailand before and after praziquantel treatment. The EPG values of each participant were determined by the modified cellophane thick smear method, and adult worms were collected from the whole stool after the treatment. Eggs per day per worm (EPDPW) of H. taichui were estimated 82 from egg counts and expelled worms. The EPG was not well correlated with the worm burden, and a reverse correlation was observed between the EPDPW and the worm burden.

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André S. Lopes, Eduardo A. Pulido-Murillo, Alan L. Melo, Hudson A. Pinto
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Status of intestinal helminthic infections of borderline residents in North Korea: Shunyu Li, Chenghua Shen, Min-Ho Choi, Young Mee Bae, Hiwon Yoon, Sung-Tae Hong; Korean J Parasitol 2006;44(3):265-268.
Published online September 20, 2006; DOI: https://doi.org/10.3347/kjp.2006.44.3.265

Abstract
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The present authors investigated intestinal parasitic infections among North Korean residents and refugees in China in 2003. The Kato-Katz method was applied to 236 residents and soldiers in a town on the North Korea-China border and to 46 people at a refugee camp in China. Only eggs of Ascaris and Trichuris were detected, with egg positive rates of 41.1% and 37.6%, respectively. The total egg positive rate was 55.0% and most of those who were egg positive were only lightly infected. Women of 61.2% and men of 53.1% were egg positive. The refugees from rural areas showed higher egg positive rates than those from urban areas. The present investigation confirmed high prevalence of soil-transmitted intestinal helminths in rural borderline areas of North Korea.

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Egg positive rate of Enterobius vermicularis among preschool children in Cheongju, Chungcheongbuk-do, Korea: Seokha Kang, Hyeong Kyu Jeon, Keeseon S. Eom, Joong-Ki Park; Korean J Parasitol 2006;44(3):247-249.
Published online September 20, 2006; DOI: https://doi.org/10.3347/kjp.2006.44.3.247

Abstract
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In an attempt to determine the prevalence of pinworm infection, the egg positive rate of Enterobius vermicularis was examined using the adhesive cello-tape anal swab method in 1,512 preschool children sampled from a total of 20 kindergartens in Cheongju city, in November to December of 2004 (951 children from 13 kindergartens) and September to October of 2005 (561 from 7 kindergartens). The overall egg positive rate was found to be 7.9% (119/1,512); 9.3% (73/784) for boys and 6.3% (46/728) for girls, respectively. The 5-year age group evidenced the highest egg positive rate (10.9%, 47/430) among the examined age groups. As compared to those reported from previous works (ranged from 9.2 to 26.1%), the prevalence of E. vermicularis in the Cheongju city area is relatively low.

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Egg positive rate of Enterobius vermicularis and Taenia spp. by cellophane tape method in primary school children in Sivas, Turkey: Ali ?eliks?z, Mehmet Aci?z, Serpil De?erli, Ahmet Alim, ?etin Aygan; Korean J Parasitol 2005;43(2):61-64.
Published online June 20, 2005; DOI: https://doi.org/10.3347/kjp.2005.43.2.61

Abstract
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The aim of the present study was to find out the number of students with enterobiasis and/or taeniasis in primary schools of Sivas. Among the 2,029 students in 6 primary schools, 316 (15.6%) were positive to Enterobius vermicularis eggs and 32 (1.6%) were positive to Taenia spp. eggs by the cellophane tape method. The egg positive rates of E. vermicularis and Taenia spp. ranged from 9.4% to 27.2% and from 0.8% to 2.6% respectively among six schools. The egg positive rate of E. vermicularis was found to be significantly different among these schools (χ² = 31.96, P < 0.05), whereas there was no significant difference between the schools for Taenia spp. (χ² = 4.37; P > 0.05). The rate (18.7%) of E. vermicularis in the urban slum regions was higher than the rate (11.5%) in the urban central regions (χ² = 19.20; P < 0.05). Above results demonstrate that the egg positive rate of E. vermicularis and Taenia spp. was still prevalent among primary school children.

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Mehmet Acıöz, Hazal ZORBOZAN, Tuba ÖZTÜRK
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Mohsen Arbabi, Nader Esmaili, Karim Parastouei, Hossein Hooshyar, Sima Rasti
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Egg positive rate of Enterobius vermicularis of primary school children in Geoje island: Bong Jin Kim, Bo Young Lee, Hyun Kee Chung, Young Sun Lee, Kun Hee Lee, Hae Jin Chung, Mee Sun Ock; Korean J Parasitol 2003;41(1):75-77.
Published online March 20, 2003; DOI: https://doi.org/10.3347/kjp.2003.41.1.75

Abstract
PDF

The status of pinworm (Enterobius vermicularis) egg positive rate of primary school children in Geoje island was investigated by using adhesive cellotape anal swap method, in September, 2002. Total egg positive rates of E. vermicularis were 9.8% (74/754) and those of male and female were 10.8% and 8.7%, respectively. Among three schools examined, Myeongsa primary school showed the highest egg positive rate (12.6%) followed by Yeoncho [9.8% (26/266)] and Geoje [9.1% (35/385)]. As for the age groups, the 2nd grade had the highest egg positive rate (15.3%), whereas the 5th grade showed the lowest egg positive rate (2.6%). The above result led us to confirm that the egg positive rates of E. vermicularis in primary school children in Geoje island were not significantly different from the those in the whole country including urban and rural areas, showing more than 10%.

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Hyejoo Shin, Bong-Kwang Jung, Seungwan Ryoo, Sooji Hong, Taehee Chang, Jiyeon Park, Keon Hoon Lee, Jeonggyu Lee, Jae Young Park, Hoo-Gn Jeoung, Jae Hyun Cho, Jong-Yil Chai
The Korean Journal of Parasitology.2021; 59(4): 421. CrossRef
A preliminary epidemiological study of pinworm infection in Thaklong Municipal Early Childhood Development Center and Rangsit Babies’ Home, Pathum Thani, Thailand
Aree Taylor, Prasert Saichua, Pochong Rhongbutsri, Rattana Tiengtip, Sirima Kitvatanachai, Walter R. J. Taylor
BMC Research Notes.2018;[Epub] CrossRef
Pinworm (Enterobius vermicularis) Infection among Primary Level Government School Children of Chhampi, Lalitpur District, Nepal
Karuna Khadka, Mahendra Maharjan
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Kindergarten Teacher’s Knowledge of Enterobiasis in Korea
Dong-Hee Kim, Hak-Sun Yu
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Effect of a One-Off Educational Session about Enterobiasis on Knowledge, Preventative Practices, and Infection Rates among Schoolchildren in South Korea
Dong-Hee Kim, Hak Sun Yu, David Joseph Diemert
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Dong-Hee Kim, Hyun-Mi Son, Joo Young Kim, Min Kyoung Cho, Mee Kyung Park, Sin Ye Kang, Bo Young Kim, Hak Sun Yu
The Korean Journal of Parasitology.2010; 48(2): 121. CrossRef
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Kalle Remm, Mare Remm
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Egg positive rate of Enterobius vermicularis among preschool children in Cheongju, Chungcheongbuk-do, Korea
Seokha Kang, Hyeong Kyu Jeon, Keeseon S. Eom, Joong-Ki Park
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Gülnaz Çulha, Nizami Duran
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Egg positive rate of Enterobius vermicularis and Taenia spp. by cellophane tape method in primary school children in Sivas, Turkey
Ali Çeliksöz, Mehmet Aciöz, Serpil Değerli, Ahmet Alim, Çetin Aygan
The Korean Journal of Parasitology.2005; 43(2): 61. CrossRef
A survey of Enterobius vermicularis infection among children on western and southern coastal islands of the Republic of Korea
Jae-Hwan Park, Eun-Taek Han, Won-Hee Kim, Eun-Hee Shin, Sang-Mee Guk, Jae-Lip Kim, Jong-Yil Chai
The Korean Journal of Parasitology.2005; 43(4): 129. CrossRef
Parasitic Diseases in Children
Sun Huh
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Enterobius vermicularisinfection among population of General Mansilla, Argentina
Betina C Pezzani
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Infection status of Clonorchis sinensis in residents of Hamyang-gun, Gyeongsangnam-do, Korea: Bong Jin Kim, Mee-Sun Ock, Ik Su Kim, Un Bo Yeo; Korean J Parasitol 2002;40(4):191-193.
Published online December 30, 2002; DOI: https://doi.org/10.3347/kjp.2002.40.4.191

Abstract
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Oriental liver fluke (Clonorchis sinensis) infection was surveyed among residents of Hamyang-gun, Gyeongsangnam-do, Korea during the period of January 2001 to March 2002. Total 1,041 stool samples were collected from residents who visited Public Health Center and its branches in Hamyang-gun and examined using formalin-ether sedimentation method. The overall egg positive rate was 16%, male showing higher positive rate (21%) than female (10%). The age group of 30 to 50 years had the highest egg positive rate of C. sinensis from 20% to 22%. The positive examinees were treated with praziquantel and educated individually to prevent reinfection. Egg positive rate in this area was decreased when compared with results recorded in the past, however, still remained more than 10%. This study suggests that periodic examination, treatment as well as education of residents should be continued and systematized.

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Shin-Hyeong Cho, Ki-Yeon Lee, Byung-Chul Lee, Pyo-Yun Cho, Hyeong-Il Cheun, Sung-Tae Hong, Woon-Mok Sohn, Tong-Soo Kim
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Kwang Ro Joo, Sung-Jo Bang
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Clinical and epidemiological data of patients with clonorchiasis
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Infection rates of Enterobius vermicularis and Clonorchis sinensis of primary school children in Hamyang-gun, Gyeongsangnam-do (Province), Korea: Bong Jin Kim, Je Wook Yeon, Mee Sun Ock; Korean J Parasitol 2001;39(4):323-325.
Published online December 31, 2001; DOI: https://doi.org/10.3347/kjp.2001.39.4.323

Abstract
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The egg positive rate of Enterobius vermicularis and Clonorchis sinensis of school children in the rural area was studied in Hamyang-gun. Gyeongsangnam-do in Korea. Cellotape anal swab and formalin ether concentration methods were performed one time to 720 primary school children. The total egg positive rate of E. vermicularis was 12.6% in two schools (Baekjeon and Wiseong). In the Baekjeon and Wiseong primary school, the egg positive rate of E. vermicularis was 4.6% and 13.4%, respectively. Pinworm egg positive rate was 17.6% in the lower grades (1st. 2nd and 3rd), and 7.7% in higher grades (4th, 5th and 6th). The total egg positive rate of male and female was 12.6% and 12.7%, respectively. The egg positive rate of C. sinensis of Baekjeon and Wiseong primary school was 1.5% and 0.46%, respectively. The total egg positive rate of C. sinensis was 0.56%. This survey showed that continuous education and chemotherapy is necessary to treat and prevent reinfection of E. vermicularis. In the case of C. sinensis, health education for school children is recommended to prevent potential infection of adolescents.

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Pinworm (Enterobius Vermicularis) Infestation: An Updated Review
Alexander K.C. Leung, Joseph M. Lam, Benjamin Barankin, Alex H.C. Wong, Kin F. Leong, Kam L. Hon
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Enterobius vermicularis Infection among Preschool Children: A 12-Year (2008-2019) Survey in Large Cities and Provinces of the Republic of Korea
Hyejoo Shin, Bong-Kwang Jung, Seungwan Ryoo, Sooji Hong, Taehee Chang, Jiyeon Park, Keon Hoon Lee, Jeonggyu Lee, Jae Young Park, Hoo-Gn Jeoung, Jae Hyun Cho, Jong-Yil Chai
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A preliminary epidemiological study of pinworm infection in Thaklong Municipal Early Childhood Development Center and Rangsit Babies’ Home, Pathum Thani, Thailand
Aree Taylor, Prasert Saichua, Pochong Rhongbutsri, Rattana Tiengtip, Sirima Kitvatanachai, Walter R. J. Taylor
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Parents' Knowledge about Enterobiasis Might Be One of the Most Important Risk Factors for Enterobiasis in Children
Dong-Hee Kim, Hyun-Mi Son, Joo Young Kim, Min Kyoung Cho, Mee Kyung Park, Sin Ye Kang, Bo Young Kim, Hak Sun Yu
The Korean Journal of Parasitology.2010; 48(2): 121. CrossRef
Egg positive rate of Enterobius vermicularis among preschool children in Cheongju, Chungcheongbuk-do, Korea
Seokha Kang, Hyeong Kyu Jeon, Keeseon S. Eom, Joong-Ki Park
The Korean Journal of Parasitology.2006; 44(3): 247. CrossRef
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Kwang Ro Joo, Sung-Jo Bang
Yonsei Medical Journal.2005; 46(6): 794. CrossRef
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Betina C Pezzani
World Journal of Gastroenterology.2004; 10(17): 2535. CrossRef
Egg positive rate of Enterobius vermicularis of primary school children in Geoje island
Bong Jin Kim, Bo Young Lee, Hyun Kee Chung, Young Sun Lee, Kun Hee Lee, Hae Jin Chung, Mee Sun Ock
The Korean Journal of Parasitology.2003; 41(1): 75. CrossRef
Infection status of Clonorchis sinensis in residents of Hamyang-gun, Gyeongsangnam-do, Korea
Bong Jin Kim, Mee-Sun Ock, Ik Su Kim, Un Bo Yeo
The Korean Journal of Parasitology.2002; 40(4): 191. CrossRef

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Enterobius vermicularis egg positive rate of pre-school children in Chunchon, Korea (1999): Hyung-Jun Yoon, Ye-Jong Choi, Soo-Ung Lee, Hyun-Young Park, Sun Huh, Yong-Sang Yang; Korean J Parasitol 2000;38(4):279-281.
Published online December 31, 2000; DOI: https://doi.org/10.3347/kjp.2000.38.4.279

Abstract
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Pre-school children were examined for the presence of Enterobius vermicularis egg by perianal swab method. We visited 67 nurseries and 25 kindergartens between January, 1999 and April, 1999 in Chunchon, Korea. Of the 4,711 children examined, 434 (9.2%) were found to be positive for E. vermicularis egg. The egg positive rates of boys and girls were 10.1% and 8.1%, respectively. The rates were 7.8% in kindergartens and 9.7% in nurseries. Positive rate of 50 institutions was less than 10%. Rate in 35 institutions was from 10% to less than 20%. Rate in 7 institutions was equal to or over 20%. Out of 1,113 children examined twice, 28 (2.5%) children were positive consecutively, 53 (4.8%) were positive with negative conversion, 47 (4.2%) were negative with positive conversion, and 985 (88.5%) were consecutively negative. It means that in the low endemic area of enterobiasis with around 10% positive rate, the two consecutive examinations may increase the egg detection rate of 4.2-4.8%. The small number of consecutive egg positive children also suggests that the worm burden of the positive children might be low. Since the egg positive rate of that age group in this City increased from 1.85% (1997), and 3.0% (1998), the more intensive regular control should be executed.

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Assessment of the Serum Level of IL-1B, IL-2, and IL-10 in Children Infected with Enterobius vermicularis in Babylon Province
Aseel Sekar Naji AL-Bairmani, Hayam Khalis Al-Masoudi
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Enterobius vermicularis Infection among Preschool Children: A 12-Year (2008-2019) Survey in Large Cities and Provinces of the Republic of Korea
Hyejoo Shin, Bong-Kwang Jung, Seungwan Ryoo, Sooji Hong, Taehee Chang, Jiyeon Park, Keon Hoon Lee, Jeonggyu Lee, Jae Young Park, Hoo-Gn Jeoung, Jae Hyun Cho, Jong-Yil Chai
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Kindergarten Teacher’s Knowledge of Enterobiasis in Korea
Dong-Hee Kim, Hak-Sun Yu
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Sun Huh
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The controversy of parasitic infection in pediatric appendicitis
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Comparison of Egg Positive Rates ofEnterobius vermicularisamong Preschool Children in Three Korean Localities
Sung-Hee Hong, Sang-Eun Lee, Young-Il Jeong, Won-Ja Lee, Shin-Hyeong Cho
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Stavros Panidis, Daniel Paramythiotis, Dimitris Panagiotou, Georgios Batsis, Spyridon Salonikidis, Vassiliki Kaloutsi, Antonios Michalopoulos
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Mare Remm, Kalle Remm
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Mare Remm, Kalle Remm
Artificial Intelligence in Medicine.2008; 43(3): 167. CrossRef
Egg positive rate of Enterobius vermicularis among preschool children in Cheongju, Chungcheongbuk-do, Korea
Seokha Kang, Hyeong Kyu Jeon, Keeseon S. Eom, Joong-Ki Park
The Korean Journal of Parasitology.2006; 44(3): 247. CrossRef
A survey of Enterobius vermicularis infection among children on western and southern coastal islands of the Republic of Korea
Jae-Hwan Park, Eun-Taek Han, Won-Hee Kim, Eun-Hee Shin, Sang-Mee Guk, Jae-Lip Kim, Jong-Yil Chai
The Korean Journal of Parasitology.2005; 43(4): 129. CrossRef
Enterobius vermicularisinfection among population of General Mansilla, Argentina
Betina C Pezzani
World Journal of Gastroenterology.2004; 10(17): 2535. CrossRef
Egg positive rate of Enterobius vermicularis of primary school children in Geoje island
Bong Jin Kim, Bo Young Lee, Hyun Kee Chung, Young Sun Lee, Kun Hee Lee, Hae Jin Chung, Mee Sun Ock
The Korean Journal of Parasitology.2003; 41(1): 75. CrossRef
Enterobius vermicularis egg positive rates in primary school children in Gangwon-do (Province), Korea
Kyu-Jae Lee, Yung-Kyum Ahn, Yong-Suk Ryang
The Korean Journal of Parasitology.2001; 39(4): 327. CrossRef
Infection rates of Enterobius vermtcularis and Clonorchis sinensis of primary school children in Hamyang-gun, Gyeongsangnam-do (Province), Korea
Bong Jin Kim, Je Wook Yeon, Mee Sun Ock
The Korean Journal of Parasitology.2001; 39(4): 323. CrossRef

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Case Report

A case of chronic cerebral paragonimiasis westermani: Shin-Yong Kang, Tae-Kwon Kim, Tae Yun Kim, Young-Il Ha, Sun-Wook Choi, Sung-Jong Hong; Korean J Parasitol 2000;38(3):167-171.
Published online September 30, 2000; DOI: https://doi.org/10.3347/kjp.2000.38.3.167

Abstract
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We report a chronic cerebral paragonimiasis from a 41-year-old Korean man who complains a headache and weakness of left motor neuron components. Magnetic resonance images of the brain revealed conglomerates of multiple ring-like enhancements in temporo-occipital and frontal lobes of the right hemisphere. An intradermal test for paragonimiasis westermani was positive. The patient was born near an endemic area of paragonimiasis and used to eat boiled or grilled freshwater crayfish in his childhood. Nodules in the brain were resected through craniotomies. The eggs of P. westermani were identified pathologically and parasitologically in the calcified necrotic lesions. Examinations on sputum and fecal specimens for the eggs of P. westermani were shown to be negative and a chest radiograph was normal. It is presumed that the brain lesions were formed by P. westermani approximately 30 years ago.

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Original Articles

Persistent endemicity of Gymnophalloides seoi infection in a southwestern coastal village of Korea with special reference to its egg laying capacity in the human host: Jong-Yil Chai, Geun Chan Lee, Yun-Kyu Park, Eun-Taek Han, Min Seo, Jin Kim, Sang-Mee Guk, Eun-Hee Shin, Min-Ho Choi, Soon-Hyung Lee; Korean J Parasitol 2000;38(2):51-57.
Published online June 30, 2000; DOI: https://doi.org/10.3347/kjp.2000.38.2.51

Abstract
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Follow-up studies have been conducted every three years on the endemicity of Gymnophalloides seoi infection in a small coastal village of Chollanam-do (Province), Korea, since it was first known as an endemic area in 1994. Special attention was given to its egg laying capacity in the human host. In fecal examinations, the overall helminth egg and/or cyst positive rate was 78.7% (74/94) in 1997 and 76.6% (82/107) in 2000. Among them G. seoi eggs showed the highest rate; 71.3% (67/94) in 1997 and 72.0% (77/107) in 2000. The average number of eggs per gram of feces (EPG) was 1,015 in 1997, while a reduced rate of 353 was observed in 2000. In 1997, total of 320,677 adult flukes of G. seoi (av. 10,344/person, 94-69,125 in range) were collected from the diarrheic stools of 31 treated patients. The EPG/worm obtained from 21 cases ranged from 0.04 to 0.77 (av. 0.23), suggesting density-dependent constraints on the worm fecundity. The relationship between the worm burden (X) and EPG/worm (Y) can be expressed as Y=0.42 ·e^-1.2χ (r=0.49). The results showed that G. seoi infection is persistently endemic in this village.

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Eun-Hee Shin, Jae-Hwan Park, Sang-Mee Guk, Jae-Lip Kim, Jong-Yil Chai
The Korean Journal of Parasitology.2009; 47(2): 189. CrossRef
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Jong-Yil Chai, Eun-Hee Shin, Soon-Hyung Lee, Han-Jong Rim
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The Korean Journal of Parasitology.2007; 45(1): 39. CrossRef
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Chenghua Shen, Jae-hwan Kim, Jeong-Keun Lee, Young Mee Bae, Min-Ho Choi, Jin-Kyoung Oh, Min Kyung Lim, Hai-Rim Shin, Sung-Tae Hong
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Min Seo, Hokyung Chun, Geunghwan Ahn, Kee-Taek Jang, Sang-Mee Guk, Jong-Yil Chai
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A nationwide survey of the prevalence of human Gymnophalloides seoi infection on western and southern coastal islands in the Republic of Korea
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Growth and development of Gymnophalloides seoi in immunocompetent and immunosuppressed C3H/HeN mice: Jong-Yil Chai, Won-Jae Chung, Jina Kook, Min Seo, Yun-Kyu Park, Sang-Mee Guk, Min-Ho Choi, Soon-Hyung Lee; Korean J Parasitol 1999;37(1):21-26.
Published online March 31, 1999; DOI: https://doi.org/10.3347/kjp.1999.37.1.21

Abstract
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The growth and development of Gymnophalloides seoi were studied in C3H/HeN mice and effects of immunosuppression of the host on the worm development were observed. Two hundred metacercariae of G. seoi were orally administered to each mouse, and worms were recovered on days 1, 3, 5, 7, 14 and 21 post-infection (PI). The worm recovery rate was significantly higher in immunosuppressed (ImSP) mice than in immunocompetent (ImCT) mice except on days 1 and 3 PI. The worms attained sexual maturity by day 3 PI with eggs in the uterus, and worm dimensions and the number of uterine eggs continuously increased until day 14 PI in ImSP mice. Worms recovered from ImSP mice were significantly larger in size than those from ImCT mice on days 1 and 3 PI, and the number of uterine eggs was significantly larger in ImSP mice on days 5 and 7 PI. Genital organs such as the ovary, testes, and vitellaria, that were already developed in the metacercarial stage, grew a little in size until day 14 PI. The results show that the C3H/HeN mouse is, though not excellent, a suitable laboratory host for G. seoi.

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In Vitro Cultivation of Cymatocarpus solearis (Brachycoeliidae) Metacercariae to Obtain the Adult Stage without the Marine Turtle Definitive Host: Grano-Maldonado, Mayra , Alvarez-Cadena, Jose; Korean J Parasitol 2010;48(1):49-55.; DOI: https://doi.org/10.3347/kjp.2010.48.1.49

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In vitro cultivation of trematodes would assist studies on the basic biology of the parasites and their hosts. This is the first study to use the yolk of unfertilized chicken eggs as a simple and successful method of ovocultivation and the first time to obtain the adult-stage of the trematode Cymatocarpus solearis Braun, 1899 (Digenea: Brachycoeliidae). Chicken eggs were inoculated with metacercariae from the muscle of the spiny lobster, Panulirus argus (Latreille, 1804). The metacercariae were excysted and incubated for 576 hr (24 days) at 38degrees C to obtain the adult stage. Eggs in utero were normal in shape and light brown color. The metacercariae developed into mature parasites that have been identified as the adult-stage found in marine turtles. The adult lobsters collected in Quintana Roo State, Mexico, showed the prevalence of 49.4% and the mean intensity of 26.0 per host (n = 87). A statistical study was performed to determine that no parasitic preference was detected for male versus female parasitized lobsters. Morphometric measurements of the adult-stage of C. solearis obtained in our study have been deposited in the National Helminths Collection of the Institute of Biology of the National Autonomous University of Mexico. This study is significant because it is the first time that a digenean of the family Brachycoeliidae has been demonstrated to develop in vitro from metacercariae into adults capable of producing eggs using the yolk of unfertilized chicken eggs. Secondly, this technique allows to obtain the adult stage of C. solearis without the presence of its marine turtle host, allows us to describe the mature parasites, and thus contribute to our understanding of the biology of C. solearis.

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