Geographic distribution and developmental sites of Aedes albopictus (Diptera: Culicidae) during a Chikungunya epidemic event
Autor(es): Delatte H, Dehecq J S, Thiria J, Domerg C, Paupy C, Fontenille D
Resumo: Aedes albopictus is generally considered to have a low vectorial capacity because of its lack of host specificity. Nevertheless, it has been the sole vector of the Chikungunya virus in recent explosive epidemics on the isl-s of La Réunion - Mauritius. We report on investigations of the seasonal prevalence, container preferences, - geographic distribution of the species on La Réunion. Ae. albopictus showed strong ecological plasticity. In the warm wet season, small disposable containers were the principal urban breeding site, with 1939 positive containers in 750 houses. In the dry winter season, the species remained abundant throughout the isl- up to 800 m - was present to a maximum altitude of 1200 m. Natural containers were clearly important in this season, although productive sources were hard to find. The preferred natural developmental sites were bamboo stumps - rock holes, over 357 developmental sites observed in peri-urban - gully areas. Generalized logistic models indicated that the optimum sites contained clear water with high organic content - were situated in sites with moderate shade. Our data will provide input into the models of the epidemiology of the disease - design of vector control programs.
Imprenta: Vector Borne and Zoonotic Ziseases, v. 8, n. 1, p. 25-34, 2008
Identificador do objeto digital: 10.1089/vbz.2007.0649
Descritores: Chikungunya virus - Pathogenesis ; Chikungunya virus - Viral infections ; Chikungunya Virus - Virus ; Chikungunya virus - Transmission ; Chikungunya virus - Epidemic ; Chikungunya virus - Epidemiology ; Chikungunya virus - Public health
Data de publicação: 2008
