Publication: Susceptibility and transovarial transmission of dengue virus in Aedes aegypti: a preliminary study of morphological variations.
2
Issued Date
2003-12-01
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ISSN
01251562
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2-s2.0-62449238158
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Mahidol University
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SCOPUS
Bibliographic Citation
The Southeast Asian journal of tropical medicine and public health. Vol.34 Suppl 2, (2003), 131-135
Suggested Citation
Ladawan Wasinpiyamongkol, Supatra Thongrungkiat, Nuananong Jirakanjanakit, Chamnarn Apiwathnasorn Susceptibility and transovarial transmission of dengue virus in Aedes aegypti: a preliminary study of morphological variations.. The Southeast Asian journal of tropical medicine and public health. Vol.34 Suppl 2, (2003), 131-135. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/20969
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Title
Susceptibility and transovarial transmission of dengue virus in Aedes aegypti: a preliminary study of morphological variations.
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Abstract
Two types of morphological variants, the dark form and the pale form of Aedes aegypti were selected from wild-caught mosquitos. Ascertaining any differences between the two forms for susceptibility to dengue type 2 virus was performed by oral feeding. Transovarial transmission was further determined from the progenies of infected mosquitos by tracing them to the third generation. Significant differences in oral infection were not observed between these two forms of mosquitos. Transovarial transmission was found in the progenies of infected females of both forms, and the filial infection rates (FIRs) were also similar. However, there was a trend of declining FIR in the later generation. In order to achieve an accurate result, more tests are currently underway to obtain a larger number of progeny. Although the FIR was low in the present study under laboratory conditions, higher rates might occur under field conditions, which could have a significant impact on the maintenance of dengue viruses in nature.