The dengue virus mosquito vector Aedes aegypti at high elevation in Mexico

Autor(es): Lozano-Fuentes, S.; Hayden, M. H.; Welsh-Rodriguez, C.; Ochoa-Martinez, C.; Tapia-Santos, B.; Kobylinski, K. C.; Uejio, C. K.; Zielinski-Gutierrez, E.; Monache, L. D.; Monaghan, A. J.; Steinhoff, D. F.; Eisen, L.


Resumo: Mexico has cities (e.g., Mexico City and Puebla City) located at elevations > 2,000 m and above the elevation ceiling below which local climates allow the dengue virus mosquito vector Aedes aegypti to proliferate. Climate warming could raise this ceiling and place high-elevation cities at risk for dengue virus transmission. To assess the elevation ceiling for Ae. aegypti And determine the potential for using weather/climate parameters to predict mosquito abundance, we surveyed 12 communities along an elevation/climate gradient from Veracruz City (sea level) to Puebla City ( similar to 2,100 m). Ae. aegypti was commonly encountered up to 1,700 m and present but rare from 1,700 to 2,130 m. This finding extends the known elevation range in Mexico by > 300 m. Mosquito abundance was correlated with weather parameters, including temperature indices. Potential larval development sites were abundant in Puebla City and other high-elevation communities, suggesting that Ae. aegypti could proliferate should the climate become warmer.


Palavras-Chave: Temperature effects; Human diseases; Sea level; Climate; Hosts; Disease transmission; Public health; Weather; Risk factors; Vectors; Development; Cities; Temperature; Global warming; Larval development; Dengue virus; Aedes aegypti


Imprenta: American Journal of Tropical Medicine and Hygiene, v. 87, n. 5, p. 902-909, 2012.


Descritores: Aedes aegypti - Virus ; Aedes aegypti - Transmission ; Aedes aegypti - Dengue ; Aedes aegypti - Public health


Data de publicação: 2012