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Title: Coinfection with Zika Virus (ZIKV) and dengue virus results in preferential ZIKV transmission by vector bite to vertebrate host.
Authors: Chaves, Bárbara Aparecida
Orfanó, Alessandra da Silva
Nogueira, Paula Monalisa
Rodrigues, Nilton Barnabé
Campolina, Thaís Bonifácio
Pimenta, Rafael Nacif
Pires, Ana Clara Araújo Machado
Vieira Junior, Ademir Bentes
Paz, Andréia da Costa
Vaz, Evelyn Beatriz da Costa
Guerra, Maria das Graças Vale Barbosa
Silva, Breno de Mello
Melo, Fabrício Freire de
Norris, Douglas Eric
Lacerda, Marcus Vinícius Guimarães de
Pimenta, Paulo Filemon Paolucci
Secundino, Nagila Francinete Costa
Keywords: Aedes aegypti
Issue Date: 2018
Citation: CHAVES, B. A. et al. Coinfection with Zika Virus (ZIKV) and dengue virus results in preferential ZIKV transmission by vector bite to vertebrate host. The Journal of Infectious Diseases, v. 218, n. 4, p. 563–571, ago. 2018. Disponível em: <>. Acesso em: 22 fev. 2019.
Abstract: Background. Several tropical cities are permissive to Aedes aegypti and dengue virus (DENV) endemicity and have allowed for invasion and circulation of Zika virus (ZIKV) in the same areas. People living in arbovirus-endemic regions have been simultaneously infected with ≥2 arboviruses. Methods. A. aegypti mosquitoes from Manaus, the capital city of Amazonas State in Brazil, were coinfected with circulating strains of DENV and ZIKV. The coinfected vectors were allowed to bite BALB/c mice. Results. A. aegypti from Manaus is highly permissive to monoinfection and coinfection with DENV and ZIKV and is capable of cotransmitting both pathogens by bite. Coinfection strongly influences vector competence, favoring transmission of ZIKV to the vertebrate host. Conclusions. This finding suggests that A. aegypti is an efficient vector of ZIKV and that ZIKV would be preferentially transmitted by coinfected A. aegypti. Coinfection in the vector population should be considered a new critical epidemiological factor and may represent a major public health challenge.
ISSN: 15376613
metadata.dc.rights.license: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence ( by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. Fonte: o próprio artigo
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