Yellow fever – Brazil

During the first four weeks of 2018, a rapid increase in the number of confirmed human cases of yellow fever was observed in the states of Rio de Janeiro, São Paulo, and Minas Gerais. From 1 July 2017 through 16 February 2018, 464 confirmed human cases of yellow fever have been reported in Brazil, including 154 deaths. Confirmed cases were reported in São Paulo (181 cases, including 53 deaths), Minas Gerais (225 cases, including 76 deaths), and Rio de Janeiro (57 cases, including 24 deaths) states and in the Federal District (1 fatal case). Unlike the previous seasonal period, the current seasonal period has been characterized by more cases reported in São Paulo and Rio de Janeiro states along with the occurrence of cases in areas near large cities.

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