Revista da Sociedade Brasileira de Medicina Tropical (Aug 2022)

Natural vertical cotransmission of Dengue virus and Chikungunya virus from Aedes aegypti in Brumado, Bahia, Brazil

  • Henry Paul Granger Neto,
  • Cínthya Viana Souza Rocha,
  • Thiago Macêdo Lopes Correia,
  • Natalia Maria Pereira da Silva,
  • Bárbara Aparecida Chaves,
  • Nágila Francinete Costa Secundino,
  • Paulo Filemon Paolucci Pimenta,
  • Fabrício Freire de Melo

DOI
https://doi.org/10.1590/0037-8682-0427-2021
Journal volume & issue
Vol. 55

Abstract

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ABSTRACT Background: Arthropod-borne viruses have recently emerged and are pathogens of various human diseases, including dengue, zika, and chikungunya viruses. Methods: We collectedAedes aegyptilarvae (N = 20) from Brumado, Bahia, Brazil, and treated and individually preserved the specimens. We analyzed the samples for dengue, zika, and chikungunya viruses using molecular biology methods. Results: We found that 25% (N = 5) and 15% (N = 3) were positive exclusively for dengue and chikungunya viruses, respectively; 15% (N = 3) were coinfected with both. Conclusions: This is the first report of dengue and chikungunya virus coinfection in A. aegypti larvae.

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