Parasites, Hosts and Diseases

"Heng Wan"

Brief Communication

Seroprevalence of Dirofilaria immitis in Cats from Liaoning Province, Northeastern China: Honglie Hou, Lili Cao, Wenzhi Ren, Dansheng Wang, He Ding, Juan You, Xinhua Yao, Hang Dong, Yanbing Guo, Shuxian Yuan, Xichen Zhang, Pengtao Gong; Korean J Parasitol 2017;55(6):673-677.
Published online December 31, 2017; DOI: https://doi.org/10.3347/kjp.2017.55.6.673

Abstract
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The present study was performed to investigate the seroprevalence and risk factors for Dirofilaria immitis infection in cats from Liaoning province, northeastern China. From October 2014 to September 2016, sera of 651 cats, including 364 domestic cats and 287 feral cats (332 females and 319 males) were assessed. They were tested for the presence of D. immitis antigen using SNAP Heartworm RT test kit. In this population, the average prevalence was 4.5%. Age and rearing conditions (feral or domestic) were found to be associated with the prevalence of D. immitis. The prevalence was significantly higher in feral cats compared with domestic cats (8.4% vs 1.4%, P<0.01). There was no significant difference between males and females (4.7% vs 4.2%, P>0.05), but older cats (≥3 years old) showed a statistically higher prevalence compared with younger cats (<3 years old) in feral populations (16.8 vs 2.4%, P<0.01), while the difference between the age groups was not statistically significant in domestic cats (2.4% vs 0.51%, P>0.05), all these results suggest that outdoor exposure time may be one of the most important factors for D. immitis prevalence in cats. Results reveal that D. immitis are prevalence in domestic and feral cats in northeastern China, which indicates that appropriate preventive measures should be taken to decrease the incidence of feline heartworm disease in Liaoning province, northeastern China.

Citations

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Case Report

Cerebellar Schistosomiasis: A Case Report with Clinical Analysis: Heng Wan, Ding Lei, Qing Mao; Korean J Parasitol 2009;47(1):53-56.
Published online March 12, 2009; DOI: https://doi.org/10.3347/kjp.2009.47.1.53

Abstract
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The authors report here a rare case of cerebellar schistosomiasis identified by pathological diagnosis, lacking extracranial involvement. The clinical symptoms included headache, dizziness, and nausea. Studies in blood were normal and no parasite eggs were detected in stool. Computed tomography of brains showed hypodense signal, and magnetic resonance imaging showed isointense signal on T1-weighted images, hyperintense signal on T2-weighted images, and intensely enhancing nodules in the right cerebellum after intravenous administration of gadolinium. A high-grade glioma was suspected, and an operation was performed. The pathologic examination of the biopsy specimen revealed schistosomal granulomas scattered within the parenchyma of the cerebellum. The definitive diagnosis was cerebellar schistosomiasis japonica. A standard use of praziquantel and corticosteroid drugs was applied, and the prognosis was good. When the pattern of imaging examinations is present as mentioned above, a diagnosis of brain schistosomiasis should be considered.

Citations

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Pseudotumoral Form of Neuroschistosomiasis: Report of Three Cases in Ganzi, China
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