We carried out dengue virus surveillance in Aedes aegypti populations from 47 neighborhoods of Acapulco during the rainy season of 2011 following a standard national protocol and as an improvement of the entomological surveillance of the Mexican Dengue Control Program. A total of 4,146 Ae. aegypti adults collected indoors and/or emerged from eggs, larvae, or pupae from households with dengue reports (probable or confirmed cases), were grouped into pools and processed using a standardized serotype-specific 4-plex real-time reverse transcriptase–polymerase chain reaction assay. Overall, only 2 (0.9%) of 226 pools of Ae. aegypti adults (1 pool of adults emerged from field-collected larvae, and another of indoor-collected adults) were positive for dengue virus 1 (DENV-1). This is appears to be the 1st report of evidence on the vertical and transovarial transmission of DENV-1 in field-caught Ae. aegypti in Mexico.
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1 June 2014
Natural Vertical Transmission of Dengue-1 Virus in Aedes aegypti Populations in Acapulco, Mexico
Norma E. Martínez,
Felipe Dzul-Manzanilla,
Cipriano Gutiérrez-Castro,
Jesus Ibarra-López,
Wilbert Bibiano-Marín,
Leonardo López-Damián,
Andrés Martini-Jaimes,
Herón Huerta,
Azael Che-Mendoza,
Guadalupe Ayora-Talavera,
Pablo Manrique-Saide
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Acapulco
Aedes aegypti
dengue
Mexico
vertical transmission