Publication: Infectivity of a Cambodian isolate of schistosoma mekongi to Neotricula aperta from northeast Thailand
Issued Date
1997-09-01
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ISSN
0022149X
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2-s2.0-0030963756
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Helminthology. Vol.71, No.3 (1997), 183-187
Suggested Citation
S. W. Attwood, V. Kitikoon, V. R. Southgate Infectivity of a Cambodian isolate of schistosoma mekongi to Neotricula aperta from northeast Thailand. Journal of Helminthology. Vol.71, No.3 (1997), 183-187. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/17858
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Title
Infectivity of a Cambodian isolate of schistosoma mekongi to Neotricula aperta from northeast Thailand
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Abstract
All three strains of Neotricula aperta (Gastropoda: Pomatiopsidae) sampled from populations in northeast Thailand were found to be compatible with a Schistosoma mekongi isolate from Kratie District, eastern Cambodia. The infection rates were: 3.0%, α-strain; 6.0%, β-strain; and 20.5%, γ-strain. The greater infectivity to the γ-strain, over both the α- and β-strains, was statistically significant. Comparisons of infectivity patterns for the Kratie isolate, with those described in earlier studies using S. mekongi isolates from southern Laos, revealed differences among the strains. The γ-strain of N. aperta is responsible for endemic transmission of human schistosomiasis in southern Laos and at Kratie. Consequently, the findings of this study are of use in the prediction of changes in the distribution of Mekong schistosomiasis, particularly its introduction to northeast Thailand from the neighbouring countries, Cambodia and Laos.