Evidence of vertical transmission and co-circulation of chikungunya and dengue viruses in field populations of Aedes aegypti (L.) from Guerrero, Mexico

Autor(es): Dzul-Manzanilla Felipe; Martínez Norma E; Cruz-Nolasco Maximina; Gutiérrez-Castro Cipriano; López-Damián Leonardo; Ibarra-López Jesús; Martini-Jaimes Andres; Bibiano-Marín Wilbert; Tornez-Benitez Citlalli; Vazquez-Prokopec Gonzalo M; Manrique-Saide Pablo

Resumo: We report results of the entomo-virological surveillance system in Aedes aegypti local populations performed by the Ministry of Health of Guerrero. Indoor-adult Ae. aegypti collected at Acapulco, Zihuatanejo, Coyuca de Benitez and Atoyac de Alvarez (dry season, 2015) were processed for dengue virus (DENV) and chikungunya virus (CHIKV) using RT-PCR. We identified different seroptypes of DENV (2, 3 and 4), CHIKV and their co-circulation in field-caught mosquitoes across a significant geographic area. Pools of males were positive for CHIKV and DENV 3 and 4 suggesting vertical transmission. Entomo-virological surveillance in Guerrero has identified early circulation of CHIKV and DENV and provided a trigger for timely and focalized vector control actions.

Palavras-Chave: Aedes aegypti; Chikungunya; Dengue; Mexico; Surveillance

Imprenta: Transactions of the Royal Society of Tropical Medicine and Hygiene, v. 110, n. 2, p. 141-144, 2016

Identificador do objeto digital: https://doi.org/10.1093/trstmh/trv106

Descritores: Aedes aegypti - RT-PCR ; Aedes aegypti - virus ; Aedes aegypti - Transmission ; Aedes aegypti - Dengue

Data de publicação: 2016