Publication: Temporal variations of opisthorchis viverrini and other trematode infection rates in bithynia siamensis siamensis from o. Viverrini-endemic areas, Chachoengsao province,central Thailand
Issued Date
2021-03-25
Resource Type
ISSN
26975718
01251562
01251562
Other identifier(s)
2-s2.0-85119936445
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Mahidol University
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SCOPUS
Bibliographic Citation
Southeast Asian Journal of Tropical Medicine and Public Health. Vol.52, No.2 (2021), 259-273
Suggested Citation
Yupa Chusongsang, Phiraphol Chusongsang, Suwalee Worakhunpiset, Zhiyue Lv, Yanin Limpanont Temporal variations of opisthorchis viverrini and other trematode infection rates in bithynia siamensis siamensis from o. Viverrini-endemic areas, Chachoengsao province,central Thailand. Southeast Asian Journal of Tropical Medicine and Public Health. Vol.52, No.2 (2021), 259-273. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/78345
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Title
Temporal variations of opisthorchis viverrini and other trematode infection rates in bithynia siamensis siamensis from o. Viverrini-endemic areas, Chachoengsao province,central Thailand
Abstract
A field study was conducted to investigate monthly variations in cercarial trematode infections in Bithynia siamensis siamensis snails in an Opisthorchis viverrini-endemic area of Chachoengsao Province, Thailand. A total of 45, 511 snails collected each month from September 2010 to August 2011, were examined for trematode infection, resulting in overall 0.10, 4.94, 1.03, and 0.01% prevalence of O. viverrini, xiphidiocercaria, amphistome, and furcocercous cercaria, respectively in B. s. siamensis. Highest prevalence of O. viverrini (0.33%) and amphistome (2.13%) were observed during the dry season (mid-February to mid-May) when rice paddies were dry, while highest prevalence of xiphidiocercaria (7.92%) occurred in the rainy season (mid-May to mid-October) when rice paddies were flooded. Monthly snail density ranged from 8.40 snails/m2 as observed in January 2011 to 32.39 snails/m2 observed in November 2010. These observations indicated dynamics of B. s. siamensis snail intermediate host of liver flukes in central Thailand depended on population density, cercarial trematode prevalence and ecology.