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Title: A mosquito densovirus infecting Aedes aegypti and Aedes albopictus from Thailand
Authors: Pattamaporn Kittayapong
Kathy J. Baisley
Scott L. O'Neill
Mahidol University
Yale University School of Medicine
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-Jan-1999
Citation: American Journal of Tropical Medicine and Hygiene. Vol.61, No.4 (1999), 612-617
Abstract: A previously undescribed mosquito densovirus was detected in colonies of Aedes aegypti and Ae. albopictus from Thailand, using a polymerase chain reaction (PCR)-based assay. Phylogenetic analysis of this virus showed it to be most closely related to ADNV isolated from Russian Ae. aegypti. Both Aedes species were susceptible to oral infection with the Thai-strain virus. Larval mortality for Ae. albopictus was higher (82%) than for Ae. aegypti (51%). Aedes aegypti were able to transmit the virus vertically to a high (58%) proportion of G1progeny, and the virus was maintained persistently for up to six generations. A PCR survey of adult Ae. aegypti and Ae. albopictus in Thailand indicated that only Ae. aegypti are infected in the field, with an overall prevalence of 44%. Densovirus infection in adult Ae. aegypti showed distinct seasonal variation. The Thai strain densovirus may play a role in structuring Ae. albopictus and Ae. aegypti populations in nature.
ISSN: 00029637
Appears in Collections:Scopus 1991-2000

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