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An epidemic of sylvatic yellow fever in the Southeast region of Maranhao State, Brazil, 1993-1994: epidemiologic and entomologic findings
(American Society of Tropical Medicine and Hygiene, 1997)
Yellow fever virus transmission was very active in Maranhao State in Brazil in 1993 and 1994. An investigation was carried out to evaluate the magnitude of the epidemic. In 1993, a total of 932 people was examined for ...