Autor(es): van den Hurk, A. F.; McElroy, K.; Pyke, A. T.; McGee, C. E.; Hall-Mendelin, S.; Day, A.; Ryan, P. A.; Ritchie, S. A.; Vanlandingham, D. L.; Higgs, S.

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 super(7.2) tissue culture infectious dose (TCID sub(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 super(6.7) TCID sub(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.

Palavras-Chave: Endemic species; Viral diseases; Tissue culture; Hosts; Hygiene; Aquatic insects; Public health; Disease transmission; Vectors; Infection; Vaccination; Yellow fever; infection; Yellow fever virus; Aedes aegypti

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

Descritores: Aedes aegypti - Infectious diseases ; Aedes aegypti - Viral infections ; Aedes aegypti - Virus ; Aedes aegypti - Transmission ; Aedes aegypti - Immunology ; Aedes aegypti - Public health

Data de publicação: 2011

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