Autor(es): van den Hurk, Andrew F.; McElroy, Kate; Pyke, Alyssa T.; McGee, Charles E.; Hall-Mendelin, Sonja; Day, Andrew; Ryan, Peter A.; Ritchie, Scott A.; Vanlandingham, Dana L.; Higgs, Stephen

Resumo: The vector competence of Australian mosquitoes for yellow fever virus (YFV) was evaluated. Infection and transmission rates in Cairns and Townsville populations of Aedes aegypti and a Brisbane strain of Ae. notoscriptus were not significantly different from a well-characterized YFV-susceptible strain of Ae. aegypti. After exposure to 10(7.2) tissue culture infectious dose (TCID(50))/mL of an African strain of YFV, > 70% of Ae. aegypti and Ae. notoscriptus became infected, and > 50% transmitted the virus. When exposed to 10(6.7) TCID(50)/mL of a South American strain of YFV, the highest infection (64%) and transmission (56%) rates were observed in Ae. notoscriptus. The infection and transmission rates in the Cairns Ae. aegypti were both 24%, and they were 36% and 28%, respectively, for the Townsville population. Because competent vectors are present, the limited number of travelers from endemic areas and strict vaccination requirements will influence whether YFV transmission occurs in Australia.

Imprenta: American Journal of Tropical Medicine and Hygiene, v. 85, n. 3, p. 446-451, 2011

Identificador do objeto digital: 10.4269/ajtmh.2011.11-0061

Descritores: Aedes aegypti - RNA ; Aedes aegypti - Infectious diseases ; Aedes aegypti - Chikungunya Fever ; Aedes aegypti - Public health

Data de publicação: 2011