Revista da Sociedade Brasileira de Medicina Tropical (Feb 2011)

Cocirculation of two dengue virus serotypes in individual and pooled samples of Aedes aegypti and Aedes albopictus larvae

  • José Eduardo Marques Pessanha,
  • Waleska Teixeira Caiaffa,
  • Alzira Batista Cecilio,
  • Felipe Campos de Melo Iani,
  • Simone Costa Araujo,
  • José Carlos Nascimento,
  • Erna Geessien Kroon,
  • Fernando Augusto Proietti,
  • Jorge Rodriguez Arias

DOI
https://doi.org/10.1590/S0037-86822011000100023
Journal volume & issue
Vol. 44, no. 1
pp. 103 – 105

Abstract

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INTRODUCTION: To detect dengue virus, eggs of Aedes sp were collected in the city of Belo Horizonte, Brazil, in 2007. METHODS: Egg samples were subsequently hatched and the larvae were tested for the presence of dengue virus RNA by RT-PCR. RESULTS: Among the Aedes aegypti larvae samples, 163 (37.4%) out of 435 were positive, including 32 (10.9%) of 293 individual larvae samples concomitantly positive for two serotypes. CONCLUSIONS: Virological surveillance detecting coinfected vectors in the field could represent an important strategy for understanding the numerous factors involved in the transmission and clinical presentation of dengue.

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