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Short Communication • Rev. Soc. Bras. Med. Trop. 55 • 2022 • https://doi.org/10.1590/0037-8682-0427-2021   copy

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

Authorship SCIMAGO INSTITUTIONS RANKINGS

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.

Keywords:
Arboviruses; Coinfection; Infectious disease transmission; Vertical

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