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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 99, No. 8, 2004, pp. 809-814
Bioline Code: oc04161
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 99, No. 8, 2004, pp. 809-814

 en Dengue Virus Detection by Using Reverse Transcription-Polymerase Chain Reaction in Saliva and Progeny of Experimentally Infected Aedes albopictus from Brazil
Márcia Gonçalves de Castro; Rita Maria Ribeiro Nogueira; Hermann Gonçalves Schatzmayr; Marize Pereira Miagostovich & Ricardo Lourenço-de-Oliveira

Abstract

Oral susceptibility and vertical transmission of dengue virus type 2 (DENV-2) in an Aedes albopictus sample from Rio de Janeiro was estimated. The infection (36.7%) and transmission (83.3%) rates for Ae. albopictus were higher than those of an Ae. aegypti colony used as control, 32.8 and 60%, respectively. Fourth instar larvae and females descendants of 48.5 and 39.1% of experimentally infected Ae. albopictus showed to harbor the virus. The oral susceptibility and the high capacity to assure vertical transmission exhibited by Ae. albopictus from Brazil reinforce that this species may play a role in the maintenance of the virus in nature and be a threat for dengue control in the country.

Keywords
Aedes albopictus - dengue virus type 2 - vector competence - vertical transmission - Brazil

 
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