Isolation of St. Louis Encephalitis Virus in South Brazil

Oscar de Souza Lopes Seção de Virus Transmitidos por Artropodos, Instituto Adolfo Lutz, São Paulo, Brazil

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Lia de Abreu Sacchetta Seção de Virus Transmitidos por Artropodos, Instituto Adolfo Lutz, São Paulo, Brazil

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Terezinha L. M. Coimbra Seção de Virus Transmitidos por Artropodos, Instituto Adolfo Lutz, São Paulo, Brazil

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Luiz Eloy Pereira Seção de Virus Transmitidos por Artropodos, Instituto Adolfo Lutz, São Paulo, Brazil

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Eight strains of a flavivirus identified as St. Louis encephalitis (SLE) virus were isolated from wild rodents, birds, and sentinel mice in three locations in the State of SĆ£o Paulo, Brazil from 1967–1969. No illness attributable to SLE virus infection was detected among the local inhabitants, although about 5% of the local population had neutralizing antibodies to this virus.

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