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Zika virus detection, isolation and genome sequencing through Culicidae sampling during the epidemic in Vitória, Espírito Santo, Brazil.

  • Author(s): Ayres, Constância Flavia Junqueira
  • Guedes, Duschinka Ribeiro Duarte
  • Paiva, Marcelo Henrique Santos
  • Morais-Sobral, Mariana Carolina
  • Krokovsky, Larissa
  • Machado, Laís Ceschini
  • Melo-Santos, Maria Alice Varjal
  • Crespo, Mônica
  • Oliveira, Cláudia Maria Fontes
  • Ribeiro, Ricardo Silva
  • Cardoso, Orlei Amaral
  • Menezes, Ana Lúcia Barbosa
  • Laperrière-Jr, Roberto Costa
  • Luna, Carlos Feitosa
  • Oliveira, André Luiz Sá
  • Leal, Walter Soares
  • Wallau, Gabriel Luz
  • et al.
Abstract

Background

Zika virus (ZIKV) has been isolated from many mosquito species in nature, but it is believed that the main vectors in urban environments are species of the genus Aedes. Here, we detected and isolated ZIKV in samples from Aedes aegypti, Aedes taeniorhynchus and Culex quinquefasciatus, collected during the Zika epidemic in Vitória, southeast Brazil. Using quantitative real-time polymerase chain reaction, ZIKV detection was performed in mosquito samples collected from February to April 2016.

Results

Overall, six pools of mosquitoes were positive for ZIKV: four of Cx. quinquefasciatus, one of Ae. aegypti and one of Ae. taeniorhynchus. Their genomes were sequenced.

Conclusions

These results support and strengthen the hypothesis that other mosquito species can also be involved in ZIKV transmission.

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