Autor(es)Tauil, P. L.

ResumoThis paper presents epidemiological and control characteristics of yellow fever in Brazil, taking its wild and urban transmission cycles into consideration. No urban cases have been reported in Brazil since 1942, but urban yellow fever cases were reported in Paraguay in 2008, after more than 50 years without registered cases in the Americas. The two main objectives of yellow fever control programs in Brazil are to reduce the number of wild cases and to maintain zero incidence of urban cases. Although there is a consensus regarding control measures that should be applied in areas endemic for the wild form, this is not so in relation to areas infested by Aedes aegypti. The arguments for and against expansion of the vaccination area are discussed. Environmental and entomological studies are needed so that areas receptive to wild-type transmission can be recognized, even if they have been silent for many years.Original Abstract: Sao apresentados aspectos epidemiologicos e do controle da febre amarela no Brasil, considerando os ciclos de transmissao silvestre e urbano. Sem registros de transmissao no Brasil desde 1942, houve casos de febre amarela urbana em 2008 no Paraguai, depois de mais de 50 anos sem essa ocorrencia nas Americas. A reducao do numero dos casos silvestres e a manutencao da eliminacao dos casos urbanos sao os dois principais objetivos do controle da febre amarela no Brasil. Embora haja consenso quanta as medidas que devem ser tomadas nas areas endemicas para a forma silvestre, isso nao ocorre em relacao as areas infestadas pelo Aedes aegypti. Sao discutidos argumentos favoraveis e contrarios a expansao da area de vacinacao. Ha necessidade de estudos ambientais e entomologicos para o reconhecimento de areas receptivas para transmissao silvestre, mesmo que estejam silentes ha muitos anos.

Palavras-ChaveEndemic species; Human diseases; Pest control; Aquatic insects; Vaccination; Public health; Control programs; Yellow fever; Aedes aegypti

ImprentaRevista de Saude Publica, Sao Paulo, v. 44, n. 3, p. 555-558, 2010.

DescritoresAedes aegypti - Transmission ; Aedes aegypti - Public health

Data de Publicação:2010