Natural vertical transmission by Stegomyia albopicta as dengue vector in Brazil/Transmissao vertical natural de Stegomyia albopicta como vetor de dengue no Brasil

The mosquito Stegomyia albopicta is among the most important arbovirus vectors in the world, particularly for Dengue viruses. Their natural history suggests that biologically these viruses are highly adapted to their mosquito hosts and they were most likely mosquito viruses prior to becoming adapted...

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Bibliographic Details
Published inBrazilian journal of biology Vol. 69; no. 1; pp. 123 - 127
Main Authors Cecilio, A.B, Campanelli, E.S, Souza, K.P.R, Figueiredo, L.B, Resende, M.C
Format Journal Article
LanguageEnglish
Published Association of the Brazilian Journal of Biology 01.02.2009
Instituto Internacional de Ecologia
Subjects
capacidade vetorial
Dengue virus
Dengue vírus
Stegomyia albopicta
transmissão vertical
vectorial capacity
vertical transmission
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Summary:The mosquito Stegomyia albopicta is among the most important arbovirus vectors in the world, particularly for Dengue viruses. Their natural history suggests that biologically these viruses are highly adapted to their mosquito hosts and they were most likely mosquito viruses prior to becoming adapted to lower primates and humans. As well as being maintained by transmission among susceptible humans, Dengue viruses may also be maintained by vertical transmission in mosquitoes during inter-epidemic periods. The larvae and mosquitoes of Stegomyia albopicta were used to identify the vertical transmission of the dengue virus in nature and to confirm the vectorial capacity concerning the Dengue virus type 2 infection. The minimum infection rate concerning S. albopicta infection with the Dengue virus was 1:36.45. In Brazil this was the first time that high minimum infection rates of vertical transmission of S. albopicta were detected in this species.
ISSN:1519-6984
1678-4375
DOI:10.1590/S1519-69842009000100015