Publication: Seasonal and spatial variation in natural densovirus infection in Anopheles minimus s.l. in Thailand
Issued Date
2000-01-01
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ISSN
01251562
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2-s2.0-0042280614
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Mahidol University
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SCOPUS
Bibliographic Citation
Southeast Asian Journal of Tropical Medicine and Public Health. Vol.31, No.1 (2000), 3-9
Suggested Citation
R. Theophil Rwegoshora, Kathy J. Baisley, Pattamaporn Kittayapong Seasonal and spatial variation in natural densovirus infection in Anopheles minimus s.l. in Thailand. Southeast Asian Journal of Tropical Medicine and Public Health. Vol.31, No.1 (2000), 3-9. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/26339
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Title
Seasonal and spatial variation in natural densovirus infection in Anopheles minimus s.l. in Thailand
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Abstract
We report the first detection of a mosquito densovirus in anophelines, An. minimus species A and species C, and describe temporal and spatial variation in natural densovirus infection. A total of 814 (136 species A; 678 species C) adult mosquitos, obtained over a one year period from human biting catches at three locations in a village in western Thailand, were PCR tested for densovirus infection. Overall infection prevalence did not differ between species (15.4% species A; 14.5% species C). Infection prevalence showed significant seasonal variation. Some spatial heterogeneity in infection was also noted, with timing of peak infection prevalence varying between sites. PCR-screening of An. minimus s.l. larvae found an overall infection prevalence of 18.8%. Larval infection showed a significant positive association with rainfall recorded two months previous to larval collection. Infection in adult mosquitos showed a moderate relationship to environmental variables, but a significant negative correlation with larval infection in the previous month.