Parasites, Hosts and Diseases

"heterophyid"

Original Articles

Infections of Digenetic Trematode Metacercariae in Wrestling Halfbeak, Dermogenys pusilla from Bangkok Metropolitan Region in Thailand: Laddawan Patarwut, Thapana Chontananarth, Jong-Yil Chai, Watchariya Purivirojkul; Korean J Parasitol 2020;58(1):27-35.
Published online February 29, 2020; DOI: https://doi.org/10.3347/kjp.2020.58.1.27

Abstract
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This study aimed to investigate metacercarial infections in the wrestling halfbeak, Dermogenys pusilla, collected from Bangkok metropolitan region of Thailand. A total of 4,501 fish from 78 study sites were commonly examined with muscle compression and digestion methods (only head part of fish) during September 2017 to July 2018. The overall prevalence of metacercarial infection was 86.1% (3,876/4,501 individuals), and the mean intensity was 48.9 metacercariae per fish infected. Four species, i.e., Posthodiplostomum sp., Stellantchasmus falcatus, Cyathocotylidae fam. sp., and Centrocestus formosanus, of digenetic trematode metacercariae (DTM) were detected. The prevalences were 65.8%, 52.0%, 2.1%, and 1.2%, respectively and their mean intensities were 23.1, 51.6, 1.4, and 3.2 per fish infected, respectively. The seasonal prevalences were 81.0% in winter, 87.8% in summer and 87.4% in rainy, and the mean intensities were 38.9, 46.6, and 55.2 metacercariae per fish infected, respectively. Conclusively, it was confirmed that the wrestling halfbeak play the role of second intermediate hosts of 4 species of digenetic trematodes including S. falcatus and Posthodiplostomum sp. in Bangkok metropolitan region. And then the metacercariae of C. formosanus and Cyathocotylidae fam. sp. are to be first found in the wrestling halfbeak by this study.

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Systemic infection of Prohemistomum vivax and Cyanodiplostomum encysted metacercariae in African catfish (Clarias gariepinus) from a heavily polluted drain at Giza, Egypt: morphological, molecular and histopathological study
Alaa Eldin Eissa, Olfat A. Mahdy, Eman M. Abouelhassan, Rabia A. El Zlitne, Abdulsalam Abu Mhara, Asmaa K. Al-Mokaddem, Eman H. Rashwan, Reham H. Ragab, Nehal A. Younis
Parasitology International.2026; 111: 103159. CrossRef
Loop‐Mediated Isothermal Amplification Combined With Lateral‐Flow Dipstick for Detection of Centrocestus formosanus in Ornamental Fish
Metawee Sabaijai, Thanawan Tejangkura, Thapana Chontananarth
Journal of Fish Diseases.2025;[Epub] CrossRef
Molecular detection of the zoonotic trematode Centrocestus formosanus (Nishigori, 1924) (Opisthorchiida, Heterophyidae) in Central Europe
Ľubomír Šmiga, Júlia Šmigová, Federica Berrilli, Ingrid Papajová, Peter Lazár, Isabel Guadano-Procesi
Veterinary Research Communications.2025;[Epub] CrossRef
Prevalence of Foodborne Trematodes in Small Indigenous Fish Species in Local Markets of Phnom Penh, Cambodia
Domenico Caruso, Lin Kong, Samnang Keo, Sreyni Yoeurn, Samphal Seng
Vector-Borne and Zoonotic Diseases.2024; 24(3): 141. CrossRef
Alterations in histopathology and stress-associated gene expression induced by infection with Prohemistomum vivax encysted metacercariae in Nile tilapia
Shimaa Abdelkhalek, Marwa M. Attia, Marwa A. Ibrahim, Reda M. S. Korany, Mohamed Abdelsalam, Dalia A. Abdel-moneam
Aquaculture International.2024; 32(4): 5107. CrossRef
Global distribution of zoonotic digenetic trematodes: a scoping review
Yue Hu, Rong-Jian Zhan, Shi-Lin Lu, Yi-Yang Zhang, Min-Yu Zhou, Hui Huang, Ding-Ding Wang, Tao Zhang, Zi-Xin Huang, Yun-Fei Zhou, Zhi-Yue Lv
Infectious Diseases of Poverty.2024;[Epub] CrossRef
Prevalence and identification of cyathocotylid trematodes infecting African catfish in Egypt
Asmaa M. I. Abuzeid, Mahmoud M. Hefni, Amal K. El-Gayar, Yue Huang, Guoqing Li
Parasitology Research.2024;[Epub] CrossRef
Identification and prevalence investigation of cyathocotylid trematode (Trematoda: Digenea: Cyathocotylidae) in Carassius auratus in Wuhu, China
Feng Jiang, Wanyu Zhang, Yang Pan, Xudong Yu, Jiacheng Cao, Ningning Du, Mengyi Zhu, Shengli Gu, Xiaodong Zhan
Veterinary Research Communications.2023; 47(3): 1185. CrossRef
High diversity of trematode metacercariae that parasitize freshwater gastropods in Bangkok, Thailand, and their infective situations, morphologies and phylogenetic relationships
Pichit Wiroonpan, Thapana Chontananarth, Jong-Yil Chai, Watchariya Purivirojkul
Parasitology.2022; 149(7): 913. CrossRef
Immune pathogenesis in pigeons during experimental Prohemistomum vivax infection
Asmaa M. I. Abuzeid, Mahmoud M. Hefni, Yue Huang, Long He, Tingting Zhuang, Guoqing Li
Frontiers in Veterinary Science.2022;[Epub] CrossRef
Cercarial trematodes in freshwater snails from Bangkok, Thailand: prevalence, morphological and molecular studies and human parasite perspective
Pichit Wiroonpan, Thapana Chontananarth, Watchariya Purivirojkul
Parasitology.2021; 148(3): 366. CrossRef

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Morphological and Molecular Identification of Stellantchasmus dermogenysi n. sp. (Digenea: Heterophyidae) in Thailand: Chalobol Wongsawad, Nattawadee Nantarat, Pheravut Wongsawad, Preeyaporn Butboonchoo, Jong-Yil Chai; Korean J Parasitol 2019;57(3):257-264.
Published online June 30, 2019; DOI: https://doi.org/10.3347/kjp.2019.57.3.257

Abstract
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We tried a series of morphological and molecular approaches to identify a new species of Stellantchasmus (Digenea: Heterophyidae) originating from the wrestling half-beaked fish, Dermogenys pusillus of Thailand. Adult worm samples of the new species were recovered from hamsters experimentally infected with the metacercariae from D. pusillus in Thailand. Two isolates (Thai and Korean) of Stellantchasmus falcatus were used as comparative control groups. Worm samples of 3 Stellantchasmus groups were morphologically observed and molecularly analyzed with the mitochondrial cytochrome c oxidase 1 gene. The morphological characteristics of S. dermogenysi n. sp. are similar to S. falcatus originating from brackish water fish, but minor difference was noted including the absence of the prepharynx, position of the ovary near the ceca end, smaller body size, and shorter esophageal length. A phylogenetic tree derived from neighborjoining and maximum-likelihood methods suggests that S. dermogenysi n. sp. is separated from S. falcatus supported by high bootstrap values. The relative divergences persist between these host-specific trematodes, which we suggest should be recognized as 2 distinct species. Comparisons of S. dermogenysi n. sp. with S. falcatus isolated from mullets in Thailand and Korea indicate a genetic divergence of mitochondrial DNA of 19.4% and 21.7%, respectively. By the present study, a new species, Stellantchasmus dermogenysi n. sp. (Digenea: Heterophyidae), is proposed in Thailand based on molecular evidences, in addition to minor morphological differences between S. falcatus and the new species.

Citations

Citations to this article as recorded by

Morphological and molecular characterization of larval trematodes infecting the assassin snail genusAnentomein Thailand
N. Chomchoei, T. Backeljau, B. Segers, C. Wongsawad, P. Butboonchoo, N. Nantarat
Journal of Helminthology.2022;[Epub] CrossRef
Infections of Digenetic Trematode Metacercariae in Wrestling Halfbeak, Dermogenys pusilla from Bangkok Metropolitan Region in Thailand
Laddawan Patarwut, Thapana Chontananarth, Jong-Yil Chai, Watchariya Purivirojkul
The Korean Journal of Parasitology.2020; 58(1): 27. CrossRef

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Pygidiopsis summa (Digenea: Heterophyidae): Status of Metacercarial Infection in Mullets from Coastal Areas in the Republic of Korea: Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Won-Ja Lee, Mi-Yeoun Park, Soon-Won Lee, Seung-Bong Choi, Beom-Nyung Huh, Won-Seok Seok; Korean J Parasitol 2016;54(4):497-502.
Published online August 31, 2016; DOI: https://doi.org/10.3347/kjp.2016.54.4.497

Abstract
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To know the infection status of zoonotic trematode metacercariae in brackish water fish, we surveyed mullets collected from 18 coastal areas in the Republic of Korea. The metacercariae of Pygidiopsis summa were detected in 236 (68.2%) out of 346 mullets examined. They were found in mullets from 15 areas except for those from Boseong-gun (Jeollanam-do), Pohang-si, and Uljin-gun (Gyeongsangbuk-do). Especially in mullets from Taean-gun (Chungcheongnam-do) and Geoje-si (Gyeongsangnam-do), their prevalences were 100% and 95.5%, and the average metacercarial density was more than 1,000 per fish. They were also detected in mullets from 3 coastal lakes, Gyeongpoho, Songjiho, and Hwajinpoho, in Gangwon-do, and their average densities were 419, 147, and 672 per infected fish, respectively. The metacercariae of 5 other heterophyid species, including Heterophyes nocens, Heterophyopsis continua, Metagonimus sp., Stictodora fuscata, and Stictodora lari, were found in the mullets examined. The metacercariae of H. nocens were detected in 66.7, 100, 28.6, 81.6, 3.9, 61.5, and 27.3% of mullets from Muan-gun, Shinan-gun, Haenam-gun, Gangjin-gun, and Boseong-gun (Jeollanam-do), Hadong-gun, and Geoje-si (Gyeongsangnam-do), and their metacercarial intensities were 64, 84, 119, 99, 1, 24, and 24 per fish infected, respectively. From the above results, it has been confirmed that P. summa metacercariae are heavily infected in mullets from coastal areas of Korea. It is suggested that residents who frequently consume raw mullet dish can be easily infected with heterophyid flukes.

Citations

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Infection Status with Digenetic Trematode Metacercariae in Fishes from Coastal Lakes in Gangwon-do, Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Soon-Won Lee
The Korean Journal of Parasitology.2019; 57(6): 681. CrossRef
Infections with Zoonotic Trematode Metacercariae in Yellowfin Goby, Acanthogobius flavimanus, from Coastal Areas of Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Jung-Won Ju, Soon-Won Lee, Won-Seok Seok
The Korean Journal of Parasitology.2018; 56(3): 259. CrossRef
Fishborne zoonotic heterophyid infections: An update
Jong-Yil Chai, Bong-Kwang Jung
Food and Waterborne Parasitology.2017; 8-9: 33. CrossRef

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Potential Zoonotic Trematodes Recovered in Stray Cats from Kuwait Municipality, Kuwait: Osama Mohamed ElShfei El-Azazy, Nadra-Elwgoud Mohamed Ibrahim Abdou, Amal Iskander Khalil, Maha Khaled Al-Batel, Qais Abdulrazak Habeeb Majeed, Adawia Abdul-Ruhman Henedi, Laila Mohamed Azad Tahrani; Korean J Parasitol 2015;53(3):279-287.
Published online June 30, 2015; DOI: https://doi.org/10.3347/kjp.2015.53.3.279

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Stray cats are a common feature roaming the streets and alleys of Kuwait; they could be a source of parasites, including trematodes, that affect humans. A survey was conducted to identify feline trematodes and throw the light on their public health significance in Kuwait. Out of 240 stray cats trapped from different localities of Kuwait from June 2011 to May 2012, 59 (24.6%) were found to be infected with 14 species of trematodes. The most common were trematodes of the genus Heterophyes, particularly H. heterophyes and H. dispar that were found in respectively 15.8% and 10.8% of the cats examined. Other trematodes recorded, with lower prevalences, were Heterophyes nocens (2.9%), Haplorchis taichui (3.8%), Stictodora sawakinensis (2.1%), Stellantchasmus falcatus (1.6%), Echinochasmus japonicus (1.6%), and Mesostephanus dottrensi (1.3%). Centrocestus cuspidatus, Galactosomum fregatae, Ascocotyle sp., Mesostephanus appendiculatus, Haplorchis yokogawai, and Pygidiopsis genata showed the lowest prevalence (0.4%) and intensity. The majority of the trematodes are recorded for the first time in Kuwait and even in the Gulf region. The study reveals that stray cats are good indicators of fish-borne trematodes in the environment. As all trematodes recovered are zoonotic, their significance to public health should be considred.

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Helminths of Cats (Felis catus Linnaeus, 1758) and Their Larval Stages in Reptiles in Dubai, United Arab Emirates
Rolf K. Schuster, Saritha Sivakumar
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Yue Hu, Rong-Jian Zhan, Shi-Lin Lu, Yi-Yang Zhang, Min-Yu Zhou, Hui Huang, Ding-Ding Wang, Tao Zhang, Zi-Xin Huang, Yun-Fei Zhou, Zhi-Yue Lv
Infectious Diseases of Poverty.2024;[Epub] CrossRef
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Mahdi Soroushianfar, Soheil Sadr, Alireza Sazmand, Shiva Dianaty, Javad Khedri, Rolf Karl Schuster, Hassan Borji
Parasitology International.2024; 102: 102919. CrossRef
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Yusuf Ridwan, Etih Sudarnika, Tri Isyani Tungga Dewi, Novericko Ginger Budiono
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Prevalence of heterophyid infection in tilapia fish “Orechromas niloticus” with emphasize of cats role as neglected reservoir for zoonotic Heterophyes heterophyes in Egypt
Mahmoud Abdelnaby El-Seify, Khaled Sultan, Nagwa Mohammed Elhawary, Neveen Salah Satour, Naema Mohammed Marey
Journal of Parasitic Diseases.2021; 45(1): 35. CrossRef
Foodborne intestinal flukes: A brief review of epidemiology and geographical distribution
Jong-Yil Chai, Bong-Kwang Jung
Acta Tropica.2020; 201: 105210. CrossRef
Helminth Parasites among Rodents in the Middle East Countries: A Systematic Review and Meta-Analysis
Md Mazharul Islam, Elmoubashar Farag, Mohammad Mahmudul Hassan, Devendra Bansal, Salah Al Awaidy, Abdinasir Abubakar, Hamad Al-Romaihi, Zilungile Mkhize-Kwitshana
Animals.2020; 10(12): 2342. CrossRef
Fishborne zoonotic heterophyid infections: An update
Jong-Yil Chai, Bong-Kwang Jung
Food and Waterborne Parasitology.2017; 8-9: 33. CrossRef

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Case Report

Four Human Cases of Acanthotrema felis (Digenea: Heterophyidae) Infection in Korea: Jong-Yil Chai, Jae-Lip Kim, Min Seo; Korean J Parasitol 2014;52(3):291-294.
Published online June 26, 2014; DOI: https://doi.org/10.3347/kjp.2014.52.3.291

Abstract
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Acanthotrema felis is an intestinal trematode of cats originally reported from the Republic of Korea. Only 1 human case infected with a single adult worm has been previously recorded. In the present study, we report 4 human cases infected with a total of 10 worms recovered after anthelmintic treatment and purging. All 4 patients reside in coastal areas of Jeollanam-do, Korea, and have consumed brackish water fish including the gobies, Acanthogobius flavimanus. The worms averaged 0.47 mm in length and 0.27 mm in width, and had 3 sclerites on the ventrogenital sac; 1 was short and thumb-like, another was long and blunt-ended, and the 3rd was long and broad-tipped. They were identified as A. felis Sohn, Han, & Chai, 2003. Surveys on coastal areas to detect further human cases infected with A. felis are required.

Citations

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Cercarial trematodes in freshwater snails from Bangkok, Thailand: prevalence, morphological and molecular studies and human parasite perspective
Pichit Wiroonpan, Thapana Chontananarth, Watchariya Purivirojkul
Parasitology.2021; 148(3): 366. CrossRef
Foodborne intestinal flukes: A brief review of epidemiology and geographical distribution
Jong-Yil Chai, Bong-Kwang Jung
Acta Tropica.2020; 201: 105210. CrossRef
Fishborne zoonotic heterophyid infections: An update
Jong-Yil Chai, Bong-Kwang Jung
Food and Waterborne Parasitology.2017; 8-9: 33. CrossRef
Heterophyid trematodes recovered from people residing along the Boseong River, South Korea
Jong-Yil Chai, Bong-Kwang Jung, Deok-Gyu Kim, Jae-Lip Kim, Hyemi Lim, Eun-Hee Shin, Keon Hoon Lee, Mok Ryeon Kim, Sun Jin Han, Jae Hyun Yeom, Sun Mi Park, Jae-Sun Hwang
Acta Tropica.2015; 148: 142. CrossRef
Molecular characterization of Stictodora tridactyla (Trematoda: Heterophyidae) from Kuwait Bay using rDNA ITS and mtCO1
Wafa Y. Al-Kandari, Majed A. Alnaqeeb, Asha M. Isaac, Suzanne A. Al-Bustan
Parasitology Research.2015; 114(11): 4259. CrossRef

9,254 View
86 Download
6 Web of Science
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Mini Review

Foodborne Intestinal Flukes in Southeast Asia: Jong-Yil Chai, Eun-Hee Shin, Soon-Hyung Lee, Han-Jong Rim; Korean J Parasitol 2009;47(Suppl):S69.
Published online October 23, 2009; DOI: https://doi.org/10.3347/kjp.2009.47.S.S69

Abstract
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In Southeast Asia, a total of 59 species of foodborne intestinal flukes have been known to occur in humans. The largest group is the family Heterophyidae, which constitutes 22 species belonging to 9 genera (Centrocestus, Haplorchis, Heterophyes, Heterophyopsis, Metagonimus, Procerovum, Pygidiopsis, Stellantchasmus, and Stictodora). The next is the family Echinostomatidae, which includes 20 species in 8 genera (Artyfechinostomum, Acanthoparyphium, Echinochasmus, Echinoparyphium, Echinostoma, Episthmium, Euparyphium, and Hypoderaeum). The family Plagiorchiidae follows the next containing 5 species in 1 genus (Plagiorchis). The family Lecithodendriidae includes 3 species in 2 genera (Phaneropsolus and Prosthodendrium). In 9 other families, 1 species in 1 genus each is involved; Cathaemaciidae (Cathaemacia), Fasciolidae (Fasciolopsis), Gastrodiscidae (Gastrodiscoides), Gymnophallidae (Gymnophalloides), Microphallidae (Spelotrema), Neodiplostomidae (Neodiplostomum), Paramphistomatidae (Fischoederius), Psilostomidae (Psilorchis), and Strigeidae (Cotylurus). Various types of foods are sources of human infections. They include freshwater fish, brackish water fish, fresh water snails, brackish water snails (including the oyster), amphibians, terrestrial snakes, aquatic insects, and aquatic plants. The reservoir hosts include various species of mammals or birds.The host-parasite relationships have been studied in Metagonimus yokogawai, Echinostoma hortense, Fasciolopsis buski, Neodiplostomum seoulense, and Gymnophalloides seoi; however, the pathogenicity of each parasite species and host mucosal defense mechanisms are yet poorly understood. Clinical aspects of each parasite infection need more clarification. Differential diagnosis by fecal examination is difficult because of morphological similarity of eggs. Praziquantel is effective for most intestinal fluke infections. Continued efforts to understand epidemiological significance of intestinal fluke infections, with detection of further human cases, are required.

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Parasitology.2023; 150(4): 391. CrossRef
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Parasitology Research.2023; 122(10): 2325. CrossRef
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Frontiers in Microbiology.2023;[Epub] CrossRef
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Acta Parasitologica.2022; 67(1): 539. CrossRef
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Infectious Diseases of Poverty.2022;[Epub] CrossRef
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Chadaporn Dunghungzin, Thapana Chontananarth
Acta Tropica.2021; 214: 105795. CrossRef
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Critical Reviews in Food Science and Nutrition.2021; 61(5): 867. CrossRef
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Journal of Food Protection.2021; 84(3): 437. CrossRef
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Journal of Microbiological Methods.2021; 187: 106258. CrossRef
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Foods.2021; 10(4): 766. CrossRef
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Chemistry & Biodiversity.2021;[Epub] CrossRef
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Acta Parasitologica.2021; 66(4): 1251. CrossRef
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Aquaculture International.2021; 29(3): 1393. CrossRef
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Anca-Daniela Cotuna-Coste, Maria Bodnari, Rebeca-Miruna Gherman, Corina-Mihaela Maniu, Carmen Panaitescu
Alergologia.2021; 1(5): 41. CrossRef
Morphology and Mitochondrial Genome of Fischoederius sp. 1 in Thailand
Pichanee Watthanasiri, Amornrat Geadkaew-Krenc, Rudi Grams
The Korean Journal of Parasitology.2021; 59(4): 355. CrossRef
The use of alternative food sources to improve health and guarantee access and food intake
Lilian Regina Barros Mariutti, Kemilla Sarmento Rebelo, Antonio Bisconsin-Junior, Janne Santos de Morais, Marciane Magnani, Iriani Rodrigues Maldonade, Nuno Rodrigo Madeira, Andrea Tiengo, Mário Roberto Maróstica, Cinthia Baú Betim Cazarin
Food Research International.2021; 149: 110709. CrossRef
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Journal of Future Foods.2021; 1(1): 38. CrossRef
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Jong-Yil Chai, Bong-Kwang Jung
Acta Tropica.2020; 201: 105210. CrossRef
Benefits and food safety concerns associated with consumption of edible insects
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NFS Journal.2020; 18: 1. 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
Mitochondrial Genome Sequence of Echinostoma revolutum from Red-Crowned Crane (Grus japonensis)
Rongkun Ran, Qi Zhao, Asmaa M. I. Abuzeid, Yue Huang, Yunqiu Liu, Yongxiang Sun, Long He, Xiu Li, Jumei Liu, Guoqing Li
The Korean Journal of Parasitology.2020; 58(1): 73. CrossRef
Edible insects: An overview on nutritional characteristics, safety, farming, production technologies, regulatory framework, and socio-economic and ethical implications
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Trends in Food Science & Technology.2020; 100: 35. CrossRef
Rumen fluke, Fischoederius elongatus (Trematoda: Gastrothylacidae): Preliminary investigation of suitable conditions for egg hatching
Sirapat Nak-on, Thapana Chontananarth
Veterinary Parasitology.2020; 282: 109135. CrossRef
Taxonomy of Echinostoma revolutum and 37-Collar-Spined Echinostoma spp.: A Historical Review
Jong-Yil Chai, Jaeeun Cho, Taehee Chang, Bong-Kwang Jung, Woon-Mok Sohn
The Korean Journal of Parasitology.2020; 58(4): 343. CrossRef
Zoonotic Helminthiases in Rodents (Bandicota indica, Bandicota savilei, and Leopoldamys edwardsi) from Vientiane Capital, Lao PDR
Phaviny Sithay, Thaksaporn Thongseesuksai, Somphonephet Chanthavong, Onekham Savongsy, Naly Khaminsou, Thidarut Boonmars, Porntip Laummaunwai
The American Journal of Tropical Medicine and Hygiene.2020; 103(6): 2323. CrossRef
Survey of Stenomelania Fisher, 1885 (Cerithioidea, Thiaridae): The potential of trematode infections in a newly-recorded snail genus at the coast of Andaman Sea, South Thailand
Kitja Apiraksena, Suluck Namchote, Jirayus Komsuwan, Wivichuta Dechraksa, Kampanat Tharapoom, Nuanpan Veeravechsukij, Matthias Glaubrecht, Duangduen Krailas
Zoosystematics and Evolution.2020; 96(2): 807. CrossRef
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S. B. Chuyelov, A. L. Rossina
CHILDREN INFECTIONS.2020; 19(4): 38. CrossRef
Metagonimus yokogawai Ancient DNA Recovered from 16th- to 17th-Century Korean Mummy Feces of the Joseon Dynasty
Jong Ha Hong, Min Seo, Chang Seok Oh, Jong-Yil Chai, Dong Hoon Shin
Journal of Parasitology.2020;[Epub] CrossRef
A Critical Appraisal of the Evidence Supporting Consumer Motivations for Alternative Proteins
Rachel Tso, Amanda JiaYing Lim, Ciarán G. Forde
Foods.2020; 10(1): 24. CrossRef
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Pura Yashung, Jaya Narah, Karsing Megu, Jharna Chakravorty
Dera Natung Government College Research Journal.2020; 5(1): 35. CrossRef
Postharvest processes of edible insects in Africa: A review of processing methods, and the implications for nutrition, safety and new products development
C. Mutungi, F. G. Irungu, J. Nduko, F. Mutua, H. Affognon, D. Nakimbugwe, S. Ekesi, K. K. M. Fiaboe
Critical Reviews in Food Science and Nutrition.2019; 59(2): 276. CrossRef
Larval Neodiplostomum americanum in the lung of a sugar glider (Petaurus breviceps)
James E. Bogan, Michael M. Garner, April Childress, James F.X. Wellehan
Journal of Exotic Pet Medicine.2019; 30: 72. CrossRef
Safety of wild harvested and reared edible insects: A review
T.R. Murefu, L. Macheka, R. Musundire, F.A. Manditsera
Food Control.2019; 101: 209. CrossRef
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Ranjit Sah, Lucrecia Acosta, Rafael Toledo
Parasitology International.2019; 71: 56. CrossRef
An Autochthonous Human Case of Fasciolopsiasis in Nepal
Ranjit Sah, Michele Calatri, Rafael Toledo
The Korean Journal of Parasitology.2019; 57(3): 295. CrossRef
Current approach to manure management for small-scale Southeast Asian farmers - Using Vietnamese biogas and non-biogas farms as an example
Hynek Roubík, Jana Mazancová, Le Dinh Phung, Jan Banout
Renewable Energy.2018; 115: 362. CrossRef
Freshwater Snail Diversity in Mae Lao Agricultural Basin (Chiang Rai, Thailand) with a Focus on Larval Trematode Infections
Kittichai Chantima, Krittawit Suk-ueng, Mintra Kampan
The Korean Journal of Parasitology.2018; 56(3): 247. CrossRef
Food Safety Issues Related to Uses of Insects for Feeds and Foods
H. J. van der Fels‐Klerx, L. Camenzuli, S. Belluco, N. Meijer, A. Ricci
Comprehensive Reviews in Food Science and Food Safety.2018; 17(5): 1172. CrossRef
De novo genome and transcriptome analyses provide insights into the biology of the trematode human parasite Fasciolopsis buski
Devendra Kumar Biswal, Tanmoy Roychowdhury, Priyatama Pandey, Veena Tandon, Paulo Lee Ho
PLOS ONE.2018; 13(10): e0205570. CrossRef
Food safety aspect of insects: A review
M. Mézes
Acta Alimentaria.2018; 47(4): 513. CrossRef
Trematodoses in Cattle and Buffalo Around Schistosomiasis Endemic Areas in Central Sulawesi Province of Indonesia
Novericko Ginger Budiono, Fadjar Satrija, Yusuf Ridwan, Defriska Nur, . Hasmawati
Jurnal Ilmu Pertanian Indonesia.2018; 23(2): 112. CrossRef
Human Intestinal Trematodiases in India: An Overview
Abhishek Mewara, Neha Jain, Nancy Malla
Journal of Gastrointestinal Infections.2018; 8(1): 39. CrossRef
Metagonimus suifunensis sp. n. (Trematoda: Heterophyidae) from the Russian Southern Far East: Morphology, life cycle, and molecular data
P.G. Shumenko, Y.V. Tatonova, V.V. Besprozvannykh
Parasitology International.2017; 66(1): 982. CrossRef
The ribosomal transcription units of Haplorchis pumilio and H. taichui and the use of 28S rDNA sequences for phylogenetic identification of common heterophyids in Vietnam
Thanh Hoa Le, Khue Thi Nguyen, Nga Thi Bich Nguyen, Huong Thi Thanh Doan, Do Trung Dung, David Blair
Parasites & Vectors.2017;[Epub] CrossRef
Metacercaria Infection Status of Fishborne Zoonotic Trematodes, Except for Clonorchis sinensis in Fish from the Heilongjiang Province, China
Jian-Hua Qiu, Ying Zhang, Xiao-Xuan Zhang, Yuan Gao, Qi Li, Qiao-Cheng Chang, Chun-Ren Wang
Foodborne Pathogens and Disease.2017; 14(8): 440. 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
Artyfechinostomum malayanum: Metacercariae Encysted in Pila sp. Snails Purchased from Phnom Penh, Cambodia
Woon-Mok Sohn, Tai-Soon Yong, Keeseon S. Eom, Muth Sinuon, Hoo-Gn Jeoung, Jong-Yil Chai
The Korean Journal of Parasitology.2017; 55(3): 341. CrossRef
Fishborne zoonotic heterophyid infections: An update
Jong-Yil Chai, Bong-Kwang Jung
Food and Waterborne Parasitology.2017; 8-9: 33. CrossRef
Pygidiopsis cambodiensis n. sp. (Digenea: Heterophyidae) from experimental hamsters infected with metacercariae in mullets from Cambodia
Woon-Mok Sohn, Deok-Gyu Kim, Bong-Kwang Jung, Jaeeun Cho, Jong-Yil Chai
Parasitology Research.2016; 115(1): 123. CrossRef
A molecular phylogeny of Asian species of the genus Metagonimus (Digenea)—small intestinal flukes—based on representative Japanese populations
Siritavee Pornruseetairatn, Hideto Kino, Takeshi Shimazu, Yukifumi Nawa, Tomáš Scholz, Jiraporn Ruangsittichai, Naowarat Tanomsing Saralamba, Urusa Thaenkham
Parasitology Research.2016; 115(3): 1123. CrossRef
Fecundity reduction of BALB/c mice after survival from lethal Neodiplostomum seoulense infection
Eun-Hee Shin, Tai-Kyun Im, Yun-Kyu Park, Jaeeun Cho, Jae-Lip Kim, Jong-Yil Chai
Parasitology Research.2016; 115(5): 2051. CrossRef
Animal Models for Echinostoma malayanum Infection: Worm Recovery and Some Pathology
Jiraporn Songsri, Ratchadawan Aukkanimart, Thidarut Boonmars, Panaratana Ratanasuwan, Porntip Laummaunwai, Pranee Sriraj, Panupan Sripan
The Korean Journal of Parasitology.2016; 54(1): 47. CrossRef
Definitive host influences the proteomic profile of excretory/secretory products of the trematode Echinostoma caproni
Alba Cortés, Javier Sotillo, Carla Muñoz-Antolí, María Trelis, J. Guillermo Esteban, Rafael Toledo
Parasites & Vectors.2016;[Epub] CrossRef
Malformations of the gill filaments of the ruffe Gymnocephalus cernuus (L.) (Pisces) caused by echinostomatid metacercariae
K Molnár, D I Gibson, G Majoros, C Székely, D Sándor, G Cech
Journal of Fish Diseases.2016; 39(11): 1357. CrossRef
Epidemiological and molecular data on heterophyid trematode metacercariae found in the muscle of grey mullets (Osteichthyes: Mugilidae) from Sardinia (western Mediterranean Sea)
Simonetta Masala, Maria Cristina Piras, Daria Sanna, Jong-Yil Chai, Bong-Kwang Jung, Woon-Mok Sohn, Giovanni Garippa, Paolo Merella
Parasitology Research.2016; 115(9): 3409. CrossRef
Complete Mitochondrial Genome of Echinostoma hortense (Digenea: Echinostomatidae)
Ze-Xuan Liu, Yan Zhang, Yu-Ting Liu, Qiao-Cheng Chang, Xin Su, Xue Fu, Dong-Mei Yue, Yuan Gao, Chun-Ren Wang
The Korean Journal of Parasitology.2016; 54(2): 173. CrossRef
A complete mitochondrial genome from Echinochasmus japonicus supports the elevation of Echinochasminae Odhner, 1910 to family rank (Trematoda: Platyhelminthes)
Thanh Hoa Le, Nga Thi Bich Nguyen, Khue Thi Nguyen, Huong Thi Thanh Doan, Do Trung Dung, David Blair
Infection, Genetics and Evolution.2016; 45: 369. CrossRef
Transforming insect biomass into consumer wellness foods: A review
Dongxiao Sun-Waterhouse, Geoffrey I.N. Waterhouse, Lijun You, Jianan Zhang, Yang Liu, Lukai Ma, Jie Gao, Yi Dong
Food Research International.2016; 89: 129. CrossRef
Susceptibility, metacercarial burden, and mortality of juvenile silver barb, common carp, mrigal, and tilapia following exposure to Haplorchis taichui
Kulthida Kopolrat, Paiboon Sithithaworn, Smarn Tesana, Ross H. Andrews, Trevor N. Petney
Parasitology Research.2015; 114(4): 1433. CrossRef
Potentially Zoonotic Helminthiases of Murid Rodents from the Indo-Chinese Peninsula: Impact of Habitat and the Risk of Human Infection
Kittipong Chaisiri, Praphaiphat Siribat, Alexis Ribas, Serge Morand
Vector-Borne and Zoonotic Diseases.2015; 15(1): 73. CrossRef
High prevalence of large trematode eggs in schoolchildren in Cambodia
Philipp J. Bless, Fabian Schär, Virak Khieu, Stefanie Kramme, Sinuon Muth, Hanspeter Marti, Peter Odermatt
Acta Tropica.2015; 141: 295. CrossRef
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Xin Yang, Robin B Gasser, Anson V Koehler, Lixia Wang, Kaixiang Zhu, Lu Chen, Hanli Feng, Min Hu, Rui Fang
Parasites & Vectors.2015;[Epub] CrossRef
Current status of fish-borne zoonotic trematode infections in Gia Vien district, Ninh Binh province, Vietnam
Nguyen Hung, Do Dung, Nguyen Lan Anh, Phan Van, Bui Thanh, Nguyen Van Ha, Hoang Van Hien, Le Canh
Parasites & Vectors.2015; 8(1): 21. CrossRef
Neglected Tropical Diseases: Trematodiases—The Indian Scenario
Veena Tandon, Jollin A. Shylla, Sudeep Ghatani, Voleentina D. Athokpam, Ranjana Sahu
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences.2015; 85(4): 901. CrossRef
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H. Madsen, N.M. Hung
Acta Tropica.2015; 141: 372. CrossRef
Heterophyid trematodes recovered from people residing along the Boseong River, South Korea
Jong-Yil Chai, Bong-Kwang Jung, Deok-Gyu Kim, Jae-Lip Kim, Hyemi Lim, Eun-Hee Shin, Keon Hoon Lee, Mok Ryeon Kim, Sun Jin Han, Jae Hyun Yeom, Sun Mi Park, Jae-Sun Hwang
Acta Tropica.2015; 148: 142. CrossRef
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Takeshi Shimazu, Hideto Kino
The Korean Journal of Parasitology.2015; 53(5): 627. CrossRef
Risques et valorisation des insectes dans l’alimentation humaine et animale
Rudy Caparros Megido, Taofic Alabi, Stéphane Larreché, Louxinger Alexandra, Éric Haubruge, Frédéric Francis
Annales de la Société entomologique de France (N.S.).2015; 51(3): 215. CrossRef
Risk profile related to production and consumption of insects as food and feed

EFSA Journal.2015; 13(10): 4257. CrossRef
Altered Protein Expression in the Ileum of Mice Associated with the Development of Chronic Infections with Echinostoma caproni (Trematoda)
Alba Cortés, Javier Sotillo, Carla Muñoz-Antoli, Bernard Fried, J. Guillermo Esteban, Rafael Toledo, John Pius Dalton
PLOS Neglected Tropical Diseases.2015; 9(9): e0004082. CrossRef
An overview of freshwater snails in Asia with main focus on Vietnam
H. Madsen, N.M. Hung
Acta Tropica.2014; 140: 105. CrossRef
Import of exotic and zoonotic trematodes (Heterophyidae: Centrocestus sp.) in Xiphophorus maculatus: Implications for ornamental fish import control in Europe
Foojan Mehrdana, Hannah Jensen, Per Kania, Kurt Buchmann
Acta Parasitologica.2014;[Epub] CrossRef
Metagonimus yokogawai: a 100-kDa Somatic Antigen Commonly Reacting with Other Trematodes
Eun-Taek Han, Hyun-Jong Yang, Young-Jin Park, Jeong-Hyun Park, Jong-Yil Chai
The Korean Journal of Parasitology.2014; 52(2): 201. CrossRef
Four Human Cases of Acanthotrema felis (Digenea: Heterophyidae) Infection in Korea
Jong-Yil Chai, Jae-Lip Kim, Min Seo
The Korean Journal of Parasitology.2014; 52(3): 291. CrossRef
Zoonotic Trematode Metacercariae in Fish from Phnom Penh and Pursat, Cambodia
Jong-Yil Chai, Woon-Mok Sohn, Byoung-Kuk Na, Tai-Soon Yong, Keeseon S. Eom, Cheong-Ha Yoon, Eui-Hyug Hoang, Hoo-Gn Jeoung, Duong Socheat
The Korean Journal of Parasitology.2014; 52(1): 35. CrossRef
Infections with cardiopulmonary and intestinal helminths and sarcoptic mange in red foxes from two different localities in Denmark
Mohammad Al-Sabi, Tariq Halasa, Christian Kapel
Acta Parasitologica.2014;[Epub] CrossRef
Mucosal Immune Responses of Mice Experimentally Infected with Pygidiopsis summa (Trematoda: Heterophyidae)
Jong-Yil Chai, Young-Jin Park, Jae-Hwan Park, Bong-Kwang Jung, Eun-Hee Shin
The Korean Journal of Parasitology.2014; 52(1): 27. CrossRef
Hygienic aspects of livestock manure management and biogas systems operated by small-scale pig farmers in Vietnam
Luu Quynh Huong, Henry Madsen, Le Xuan Anh, Pham Thi Ngoc, Anders Dalsgaard
Science of The Total Environment.2014; 470-471: 53. CrossRef
Edible Insects in a Food Safety and Nutritional Perspective: A Critical Review
Simone Belluco, Carmen Losasso, Michela Maggioletti, Cristiana C. Alonzi, Maurizio G. Paoletti, Antonia Ricci
Comprehensive Reviews in Food Science and Food Safety.2013; 12(3): 296. CrossRef
Development of an in vitro drug sensitivity assay based on newly excysted larvae of Echinostoma caproni
Gordana Panic, Katrin Ingram, Jennifer Keiser
Parasites & Vectors.2013;[Epub] CrossRef
The transcriptome of Echinostoma caproni adults: Further characterization of the secretome and identification of new potential drug targets
Gagan Garg, Dolores Bernal, Maria Trelis, Javier Forment, Javier Ortiz, M. Luz Valero, Laia Pedrola, Juan Martinez-Blanch, J. Guillermo Esteban, Shoba Ranganathan, Rafael Toledo, Antonio Marcilla
Journal of Proteomics.2013; 89: 202. CrossRef
Species Identification of Medically Important Trematodes in Aquatic Food Samples Using PCR-RFLP Targeting 18S rRNA
Kyoung-Ho Pyo, Eun-Young Kang, Young-Sang Hwang, Ho-Chong Jun, Woon-Mok Sohn, Shin-Hyeong Cho, Won-Ja Lee, Jong-Yil Chai, Eun-Hee Shin
Foodborne Pathogens and Disease.2013; 10(3): 290. CrossRef
Complete Mitochondrial Genome of Haplorchis taichui and Comparative Analysis with Other Trematodes
Dongmin Lee, Seongjun Choe, Hansol Park, Hyeong-Kyu Jeon, Jong-Yil Chai, Woon-Mok Sohn, Tai-Soon Yong, Duk-Young Min, Han-Jong Rim, Keeseon S. Eom
The Korean Journal of Parasitology.2013; 51(6): 719. CrossRef
Population dynamics and host reactions in young foxes following experimental infection with the minute intestinal fluke, Haplorchis pumilio
Sofie Nissen, Stig Milan Thamsborg, Per Walther Kania, Páll S Leifsson, Anders Dalsgaard, Maria Vang Johansen
Parasites & Vectors.2013;[Epub] CrossRef
Epidemiology, geographical distribution, and economic consequences of swine zoonoses: a narrative review
Salah Uddin Khan, Kalina R Atanasova, Whitney S Krueger, Alejandro Ramirez, Gregory C Gray
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Brief Communications

Echinostoma hortense and Heterophyid Metacercariae Encysted in Yellowfin Goby, Acanthogobius flavimanus, from Shinan-gun and Muan-gun (Jeollanam-do), Korea: Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho; Korean J Parasitol 2009;47(3):307-310.
Published online August 28, 2009; DOI: https://doi.org/10.3347/kjp.2009.47.3.307

Abstract
PDF

Fishborne trematode (FBT) metacercariae were investigated in yellowfin goby, Acanthogobius flavimanus, collected from Shinan-gun and Muan-gun, Jeollanam-do (province), Korea. All collected fishes were examined using the artificial digestion method. In all of 15 gobies from Aphae-myeon in Shinan-gun, metacercariae of Stictodora spp. (334 metacercariae/fish), Heterophyes nocens (153/fish), and Heterophyopsis continua (20/fish) were detected. In 2 of 14 gobies from Jido-myeon in Shinan-gun, 8 Echinostoma hortense metacercariae in total were detected. In 15 gobies from Haeje-myeon in Muan-gun, the metacercariae of H. continua were found in 100%, Stictodora spp. in 86.7%, and H. nocens in 6.7% of fish examined. The average numbers of metacercariae per infected fish were 23.3 (H. continua), 416.0 (Stictodora spp.), and 2.0 (H. nocens), respectively. The metacercariae of E. hortense found in gobies were elliptical, with 150 × 138 ?m in average size, and had 27 collar spines on the head crown. The above results suggest that yellowfin gobies from 2 localities may be the potential infection sources of FBT. Moreover, it is proved for the first time that the yellowfin goby, A. flavimanus, acts as a second intermediate host for E. hortense.

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Centrocestus formosanus (Digenea: Heterophyidae) Encysted in the Freshwater Fish, Puntius brevis, from Lao PDR: Eun-Taek Han, Eun-Hee Shin, Souvanny Phommakorn, Bounthong Sengvilaykham, Jae-Lip Kim, Han-Jong Rim, Jong-Yil Chai; Korean J Parasitol 2008;46(1):49-53.
Published online March 20, 2008; DOI: https://doi.org/10.3347/kjp.2008.46.1.49

Abstract
PDF

The metacercariae of Centrocestus formosanus, a minute intestinal trematode of mammals and birds, were detected in the freshwater fish, Puntius brevis, from Vientiane Municipality, Lao PDR. The metacercariae were experimentally fed to mice, and adult flukes were recovered in their small intestines 7 days later. The adult flukes were morphologically characterized by having 32 (rarely 34) circumoral spines arranged in 2 alternative rows, a large bipartite seminal vesicle, an oval-shaped ovary, and an X-shaped excretory bladder. Based on these characters, the adults were identified as Centrocestus formosanus (Nishigori, 1924). The taxonomic significance of C. formosanus, in relation to a closely related species, C. caninus (Leiper, 1913), is briefly discussed. It has been first verified by adult worm recovery that C. formosanus is prevalent in Vientiane areas of Lao PDR, taking the freshwater fish, P. brevis, as a second intermediate host.

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Original Articles

A new endemic focus of Gymnophalloides seoi infection on Aphae Island, Shinan-gun, Jeollanam-do: Jae-Hwan Park, Sang-Mee Guk, Eun-Hee Shin, Hyo-Jin Kim, Jae-Lip Kim, Min Seo, Yun-Kyu Park, Jong-Yil Chai; Korean J Parasitol 2007;45(1):39-44.
Published online March 20, 2007; DOI: https://doi.org/10.3347/kjp.2007.45.1.39

Abstract
PDF

A new endemic focus of Gymnophalloides seoi infection has been discovered on Aphae Island (Shinan-gun, Jeollanam-do), Republic of Korea. This area, which is referred to as Bokyong-ri, is a small seashore village located in the northern portion of the island. Fecal samples were collected from a total of 57 residents and examined by the Kato-Katz and formalin-ether sedimentation techniques. Helminth eggs were detected in 37 samples (64.9%); 33 samples were positive for G. seoi eggs (57.9%), 4 for Pygidiopsis summa (7.0%), 13 for other heterophyids (22.8%), 1 for Clonorchis sinensis (1.7%), and 1 for Trichuris trichiura (1.7%). Women (70.4%) revealed higher rates of G. seoi infection than did men (46.7%), and individuals older than 50 years of age also evidenced higher rates of G. seoi infection than in other age groups (P< 0.05). In worm collection from 13 G. seoi egg positive cases, G. seoi (total 86,558 specimens), Heterophyes nocens (278), Stictodora sp. (10), Heterophyopsis continua (3), P. summa (3), and unidentified flukes (42) were collected. Oysters, the source of G. seoi infection, were collected from an area proximal to the village and 50 were examined for metacercariae; 47 (94%) were found infected and the observed metacercarial density was 9.5 ± 8.9 per oyster. The results of this study indicate that Bokyong-ri is a new endemic area of G. seoi infection, with high rates of infection in humans and oysters.

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Survey of Gymnophalloides seoi Metacercariae in Natural and Cultured Oysters from Several Western Coastal Areas, Korea
Taehee Chang, Bong-Kwang Jung, Hyemi Song, Jaeeun Cho, Sooji Hong, Keon-Hoon Lee, Eui-Hyug Hoang, Jisu Kang, Jini Lim, Hana Lee, Jong-Yil Chai
The Korean Journal of Parasitology.2019; 57(6): 705. CrossRef
Pygidiopsis summa (Digenea: Heterophyidae): Status of Metacercarial Infection in Mullets from Coastal Areas in the Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Won-Ja Lee, Mi-Yeoun Park, Soon-Won Lee, Seung-Bong Choi, Beom-Nyung Huh, Won-Seok Seok
The Korean Journal of Parasitology.2016; 54(4): 497. CrossRef
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The Korean Journal of Malacology.2012; 28(1): 13. CrossRef
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Journal of the Korean Medical Association.2007; 50(11): 946. CrossRef

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A new endemic focus of Heterophyes nocens and other heterophyid infections in a coastal area of Gangjin-gun, Jeollanam-do: Jae-Hwan Park, Jae-Lip Kim, Eun-Hee Shin, Sang-Mee Guk, Yun-Kyu Park, Jong-Yil Chai; Korean J Parasitol 2007;45(1):33-38.
Published online March 20, 2007; DOI: https://doi.org/10.3347/kjp.2007.45.1.33

Abstract
PDF

To know the prevalence of heterophyid trematodes among inhabitants of a southern coastal village, i.e., Sacho-ri, Gangjin-gun, Jeollanam-do (Province), 82 stool samples were examined on helminth eggs and protozoan cysts using Kato-Katz and formalin-ether sedimentation techniques. Total 33 people (40.2%) were positive for trematodes (Heterophyes nocens; 15 people, Pygidiopsis summa; 3, Metagonimus sp.; 4, Clonorchis sinensis; 7, Gymnophalloides seoi; 6) and/or protozoa (Entamoeba coli; 3). Among intestinal trematode egg positive cases, 17 were treated with praziquantel and their whole diarrheic stools were collected after purgation. Adult flukes of H. nocens (number of specimens = 1,294), P. summa (386), Stellantchasmus falcatus (5), Stictodora lari (4), and Heterophyopsis continua (1) were collected using a stereomicroscope. To know the source of human H. nocens infections in this village, metacercarial infections in mullets (10) were examined and most H. nocens metacercariae (101/105, 96.2%) were found in the trunk portion. From above results, the surveyed coastal village has been newly known as an endemic focus of human H. nocens infection and consuming raw mullets was the presumable source of human heterophyid infections.

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Heterophyid metacercarial infections in brackish water fishes from Jinju-man (Bay), Kyongsangnam-do, Korea: Do Gyun Kim, Tong-Soo Kim, Shin-Hyeong Cho, Hyeon-Je Song, Woon-Mok Sohn; Korean J Parasitol 2006;44(1):7-13.
Published online March 20, 2006; DOI: https://doi.org/10.3347/kjp.2006.44.1.7

Abstract
PDF

Heterophyid metacercarial infections in brackish water fishes, i.e., perch, shad, mullet, redlip mullet, and goby, of Jinju-man (Bay), Kyongsangnam-do, Korea, were investigated using a digestion technique. Among 45 perch (Lateolabrax japonicus), the metacercariae of Heterophyopsis continua were found in 55.6% (18.5 metacercariae per fish), Stictodora spp. in 28.9% (3.6), and Metagonimus takahashii in 6.7% (17.0). The metacercariae of H. continua were detected in 23 (65.7%) of 35 shad (Konosirus punctatus). Among 15 mullet (Mugil cephalus), the metacercariae of Pygidiopsis summa were found in 100% (105.9 metacercariae per fish), Heterophyes nocens in 40.0% (8.5), H. continua in 13.3%, and Stictodora spp. in 6.7%. Among 12 redlip mullet (Chelon haematocheilus), the metacercariae of P. summa were detected in 91.7% (1,299 metacercariae per fish), H. nocens in 16.7%, and Stictodora spp. in 16.7%. Among 35 gobies (Acanthogobius flavimanus), the metacercariae of Stictodora spp. were found in 82.9% (44.5 metacercariae per fish), and H. continua in 25.7% (2.8). The adult flukes recovered from a cat experimentally infected with metacercariae from perches were compatible with M. takahashii. The results confirm that the estuarine fish in Jinju-man (Bay) are heavily infected with heterophyid metacercariae. Furthermore, it was found for the first time that the perch acts as a second intermediate host for M. takahashii.

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Prevalence of Gymnophalloides seoi infection in coastal villages of Haenam-gun and Yeongam-gun, Republic of Korea: Sang-Mee Guk, Jae-Hwan Park, Eun-Hee Shin, Jae-Lip Kim, Aifen Lin, Jong-Yil Chai; Korean J Parasitol 2006;44(1):1-5.
Published online March 20, 2006; DOI: https://doi.org/10.3347/kjp.2006.44.1.1

Abstract
PDF

One coastal village in Haenam-gun and two in Yeongam-gun, Jeollanam-do were surveyed for intestinal parasite infections by fecal examination. The egg positive rates of Gymnophalloides seoi were high, 24.1% (14/58) in Haenam-gun and 9.3% (11/118) in Yeongam-gun. The egg positive rates of heterophyids, including Heterophyes nocens, and of Clonorchis sinensis were 10.3% and 6.9% in Haenam-gun, and 14.4% and 8.5% in Yeongam-gun, respectively. After praziquantel treatment and purgation, a total of 37,761 fluke specimens were recovered from 17 patients; 11 in Haenam-gun and 6 in Yeongam-gun. Gymnophalloides seoi was the most commonly recovered species, with 37,489 specimens in total (2,205 per person). Other recovered flukes included Heterophyes nocens, Stictodora fuscata, Heterophyopsis continua, Pygidiopsis summa, and undetermined species. These results indicate that the areas surveyed are new endemic foci of G. seoi.

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The Korean Journal of Parasitology.2007; 45(1): 33. CrossRef

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Brief Communication

Two species of goby, Boleophthalmus pectinirostris and Scartelaos sp., as the new second intermediate hosts of heterophyid fluke in Korea: Woon-Mok Sohn, Jung-A Kim, Hyun-Jae Song; Korean J Parasitol 2005;43(4):161-164.
Published online December 20, 2005; DOI: https://doi.org/10.3347/kjp.2005.43.4.161

Abstract
PDF

A survey was performed in order to determine the infection status of the metacercariae of heterophyid fluke in two goby species, Boleophthalmus pectinirostris and Scartelaos sp., collected from Gangjin-gun, and Shinan-gun, Sooncheon-shi, Jeollanam-do, Republic of Korea. A total of three metacercariae of Heterophyopsis continua was found in only one B. pectinirostris (10.0%) from Gangjin-gun. Heterophyes nocens metacercariae were detected in 24 B. pectinirostris (96.0%) and 14 Scartelaos sp. (63.6%) from Shinan-gun. Heterophyopsis continua metacercariae were found in 11 B. pectinirostris (44.0%) and 21 Scartelaos sp. (95.5%) from Shinan-gun. Stictodora fuscata metacercariae were detected in 18 B. pectinirostris (72.0%) from Shinan-gun. No metacercariae were detected in 20 B. pectinirostris from Sooncheon-shi. From the above results, this study is the first to prove that B. pectinirostris and Scartelaos sp. serve as the second intermediate hosts of some heterophyid flukes in Korea.

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The Korean Journal of Parasitology.2018; 56(3): 259. CrossRef
Fishborne zoonotic heterophyid infections: An update
Jong-Yil Chai, Bong-Kwang Jung
Food and Waterborne Parasitology.2017; 8-9: 33. CrossRef
Pygidiopsis summa (Digenea: Heterophyidae): Status of Metacercarial Infection in Mullets from Coastal Areas in the Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Won-Ja Lee, Mi-Yeoun Park, Soon-Won Lee, Seung-Bong Choi, Beom-Nyung Huh, Won-Seok Seok
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The Korean Journal of Parasitology.2012; 50(3): 215. CrossRef
Fish-borne Zoonotic Trematode Metacercariae in the Republic of Korea
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The Korean Journal of Parasitology.2009; 47(Suppl): S103. CrossRef
Heterophyid metacercarial infections in brackish water fishes from Jinju-man (Bay), Kyongsangnam-do, Korea
Do Gyun Kim, Tong-Soo Kim, Shin-Hyeong Cho, Hyeon-Je Song, Woon-Mok Sohn
The Korean Journal of Parasitology.2006; 44(1): 7. CrossRef

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Original Article

Sequence comparisons of 28S ribosomal DNA and mitochondrial cytochrome c oxidase subunit I of Metagonimus yokogawai, M. takahashii and M. miyatai: Soo-Ung Lee, Sun Huh, Woon-Mok Sohn, Jong-Yil Chai; Korean J Parasitol 2004;42(3):129-135.
Published online September 20, 2004; DOI: https://doi.org/10.3347/kjp.2004.42.3.129

Abstract
PDF

We compared the DNA sequences of the genus Metagonimus: M. yokogawai, M. takahashii, and M. miyatai. We obtained 28S D1 ribosomal DNA (rDNA) and mitochondrial cytochrome c oxidase subunit I (mtCOI) fragments from the adult worms by PCR, that were cloned and sequenced. Phylogenetic relationships inferred from the nucleotide sequences of the 28S D1 rDNA and mtCOI gene. M. takahashii and M. yokogawai are placed in the same clade supported by DNA sequence and phylogenic tree analysis in 28S D1 rDNA and mtCOI gene region. The above findings tell us that M. takahashii is closer to M. yokogawai than to M. miyatai genetically. This phylogenetic data also support the nomination of M. miyatai as a separate species.

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Brief Communications

Surface ultrastructure of the adult stage of Acanthotrema felis (Trematoda: Heterophyidae): Woon-Mok Sohn, Min Seo, Jong-Yil Chai; Korean J Parasitol 2003;41(2):107-111.
Published online June 20, 2003; DOI: https://doi.org/10.3347/kjp.2003.41.2.107

Abstract
PDF

The surface ultrastructure of Acanthotrema felis (Trematoda: Heterophyidae) adults, recovered from a kitten experimentally infected with the metacercariae, was observed using a scanning electron microscope. The worm was leaf-like, ventrally concave and covered with scale-like multi-pointed tegumental spines. The spines on the anterior surface were short but broad, and had 10-12 pointed tips. The cytoplasmic processes protruded around the spines, like pockets for the spines. The ventrogenital opening was crescent, or kidney-shaped, and had protuberances with minute spines on its surrounding tegument. The spines on the posterior surface were long, but narrow, with 6-8 pointed tips. The cytoplasmic processes on this tegument were ridge-like, and elevated along the row of the spines. The surface ultrastructure of A. felis is generally similar to that of other heterophyid flukes, but some features are characteristic, and may be of taxonomic and bio-ecological significance.

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Polina Shumenko, Yulia Tatonova, Mikhail Shchelkanov
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Anthelmintic potential of sulphonamides and Cucurbita pepo seeds extract on Heterophyes heterophyes experimentally infected mice
Dalia S. Ashour, Fetouh A. Deyab, Kamal F. Eliwa, Samy I. El-Kowrany
Journal of Parasitic Diseases.2023; 47(4): 697. CrossRef
Surface ultrastructure of the adult and juvenile stages of the trematode Astiotrema impletum (Looss, 1899) Looss 1900 (incertae sedis) from the Nile puffer, Tetraodon lineatus Linnaeus, 1758
S. G. Abd El-Kareem, M. H. Ibraheem
Helminthologia.2021; 58(2): 188. CrossRef
REDESCRIPTION AND SURFACE ULTRASTRUCTURE OF PYGIDIOPSIS MACROSTOMUM (DIGENEA: HETEROPHYIDAE)
S. B E. Simões, H. S. Barbosa, C. P. Santos
Journal of Parasitology.2005; 91(4): 931. CrossRef

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Identification of Acanthotrema felis (Digenea: Heterophyidae) metacercariae encysted in the brackish water fish Acanthogobius flavimanus: Woon-Mok Sohn, Eun-Taek Han, Min Seo, Jong-Yil Chai; Korean J Parasitol 2003;41(2):101-105.
Published online June 20, 2003; DOI: https://doi.org/10.3347/kjp.2003.41.2.101

Abstract
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The metacercariae of Acanthotrema felis Sohn et al., 2003 (Digenea: Heterophyidae) were discovered in a species of the brackish water fish, Acanthogobius flavimanus, in the Republic of Korea. They were experimentally fed to kittens, and adult flukes were harvested 7 days later. The adults were morphologically characterized by the presence of a bipartite seminal vesicle, the ventral sucker associated with a ventrogenital sac enclosing 3 sclerites (2 long and pointed, and 1 short and thumb-like), and an unarmed gonotyl. The adult flukes were identified as A. felis Sohn et al., 2003, and the brackish water fish A. flavimanus has been verified as one of its second intermediate hosts.

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Infections with Zoonotic Trematode Metacercariae in Yellowfin Goby, Acanthogobius flavimanus, from Coastal Areas of Republic of Korea
Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Jung-Won Ju, Soon-Won Lee, Won-Seok Seok
The Korean Journal of Parasitology.2018; 56(3): 259. CrossRef
Fishborne zoonotic heterophyid infections: An update
Jong-Yil Chai, Bong-Kwang Jung
Food and Waterborne Parasitology.2017; 8-9: 33. CrossRef
Four Human Cases of Acanthotrema felis (Digenea: Heterophyidae) Infection in Korea
Jong-Yil Chai, Jae-Lip Kim, Min Seo
The Korean Journal of Parasitology.2014; 52(3): 291. CrossRef
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Shin-Hyeong Cho, In-Sang Kim, Eun-Jung Hwang, Tong-Soo Kim, Byoung-Kuk Na, Woon-Mok Sohn
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Epidemiological Survey on the Infection of Intestinal Flukes in Residents of Muan-gun, Jeollanam-do, the Republic of Korea
Shin-Hyeong Cho, Pyo-Yun Cho, Dong-Min Lee, Tong-Soo Kim, In-Sang Kim, Eun-Jung Hwang, Byoung-Kuk Na, Woon-Mok Sohn
The Korean Journal of Parasitology.2010; 48(2): 133. CrossRef
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Echinostoma hortense and Heterophyid Metacercariae Encysted in Yellowfin Goby, Acanthogobius flavimanus, from Shinan-gun and Muan-gun (Jeollanam-do), Korea
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Heterophyid metacercarial infections in brackish water fishes from Jinju-man (Bay), Kyongsangnam-do, Korea
Do Gyun Kim, Tong-Soo Kim, Shin-Hyeong Cho, Hyeon-Je Song, Woon-Mok Sohn
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Two species of goby, Boleophthalmus pectinirostris and Scartelaos sp., as the new second intermediate hosts of heterophyid fluke in Korea
Woon-Mok Sohn, Jung-A Kim, Hyun-Jae Song
The Korean Journal of Parasitology.2005; 43(4): 161. CrossRef

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Original Article

Surface ultrastructure of Pygidiopsis summa (Digenea: Heterophyidae) adult flukes: Jong-Yil Chai, Woon-Mok Sohn, Sung-Yil Choi, Soon-Hyung Lee; Korean J Parasitol 2002;40(3):107-112.
Published online September 30, 2002; DOI: https://doi.org/10.3347/kjp.2002.40.3.107

Abstract
PDF

A scanning electron microscopic study was performed on the surface ultrastructure of Pygidiopsis summa (Digenea: Heterophyidae) adults. Metacercariae were collected from gills and muscles of mullets (Mugil cephalus) caught in a known endemic area, and adult flukes were harvested from dogs after 8 weeks of experimental infection. The worm was calabash form with its posterior part broader than the anterior part. Tegumental spines were densely distributed over the body surface, except on the suckers and genital apparatus, and around the excretory pore. Well differentiated spines were observed on the anterior half of the body, with 14-16 tips ventrally, and 19-20 tips dorsally. On the oral sucker, three pairs of type I sensory papillae (uni-ciliated knob-like swellings) and one pair of type II sensory papillae (aciliated round-swellings) were observed on the anterior and posterior parts of the lip, respectively. On the lip of the ventral sucker, one pair of type II sensory papillae was distributed only on its posterior part. Sperms were seen emerging from or entering into the genital apparatus. The results showed that the surface ultrastructure of P. summa was unique among the heterophyid trematodes, especially in digitation of tegumental spines and in distribution of sensory papillae on oral and ventral suckers.

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Mai A. Salem, Olfat A. Mahdy, Reem M. Ramadan
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Pygidiopsis cambodiensis n. sp. (Digenea: Heterophyidae) from experimental hamsters infected with metacercariae in mullets from Cambodia
Woon-Mok Sohn, Deok-Gyu Kim, Bong-Kwang Jung, Jaeeun Cho, Jong-Yil Chai
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Case Report

An incidental case of human Heterophyes nocens infection diagnosed by sectional morphology in a biopsy specimen of the small intestine: Yong-Suk Ryang, Chi-Young Lee, Kyu-Jae Lee, Soon-Hyung Lee, Jong-Yil Chai; Korean J Parasitol 1999;37(3):189-194.
Published online September 30, 1999; DOI: https://doi.org/10.3347/kjp.1999.37.3.189

Abstract
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A case of human infection with Heterophyes nocens (Heterophyidae) was incidentally found in a biopsy specimen of the Meckel's diverticulum at the upper part of the small intestine. The patient was a 58-year-old man living in a rural area of Talsong-gun, Kyongsangbuk-do. He had gastrointestinal symptoms such as epigastric pain, indigestion, and abdominal discomfort for 3 months, and severe diarrhea, abdominal pain, and vomiting for about 1 month before hospitalization. Endoscopy of the upper part of the small intestine revealed a Meckel's diverticulum, and it was excised and histopathologically examined. Three adult flukes were incidentally found sectioned in the mucosa, and they were identified as H. nocens. The patient had a history of eating raw mullets at a fish market in Pusan 6 months ago, and the mullets were presumed to be the source of infection. This case brings a considerable interest in that specific diagnosis of heterophyid infections could be done by sectional morphology of the worms.

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Original Article

Two endemic foci of heterophyids and other intestinal fluke infections in southern and western coastal areas in Korea: Jong-Yil Chai, Tae-Eui Song, Eun-Taek Han, Sang-Mee Guk, Yun-Kyu Park, Min-Ho Choi, Soon-Hyung Lee; Korean J Parasitol 1998;36(3):155-161.
Published online September 30, 1998; DOI: https://doi.org/10.3347/kjp.1998.36.3.155

Abstract
PDF

Two endemic foci of heterophyid infections were discovered in coastal villages of Puan-gun, Chollabuk-do, and Sachon-gun. Kyongsangnam-do, Korea. Fecal examinations were performed on 153 inhabitants of Puan-gun and 138 of Sachon-gun, using cellophane thick smear and formalin-ether sedimentation technique. The helminth egg and/or protozoan cyst positive rate was 21.5% (33/153) in Puan-gun and 39.1% (54/138) in Sachon-gun. In Puan-gun, the egg positive rate of heterophyids was the highest, 17.6%, and that of other parasites was 0.7-2.6% by parasite species. In Sachon-gun, that of heterophyids was 18.8%, followed by Clonorchis sinensis (12.3%), and other parasites (0.7-5.0%). Twenth-two (Puan-gun) and six (Sachon-gun) heterophyid egg positive cases were treated with praziquantel, and adult flukes were collected from their diarrheic stools. A total of 3,284 adult flukes of Heterophyes nocens was collected from all of the 22 patients treated in Puan-gun (3-778 individually), and other trematodes were also collected from 2-15 patients: Pygidiopsis summa, Stellantchasmus falcalus, Metagonimus yokogawai, M. miyatai, Stictodora fuscata, Heterophyopsis continua, Acanthoparyphium kurogamo, and Gymnophalloides seoi. In Sachon-gun, M. yokogawai (3,007 specimens), H. nocens (120), and S. falcatus (46) were collected from 5 of 6 treated patients, and H. continua and S. lari each from one patient. The present study revealed that heterophyid flukes, especially H. nocens and M. yokogawai, are prevalent in the southern and western coastal areas of Korea where fresh and/or brackish water fishes are popularly eaten raw.

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