Yellow Fever in Pará State, Amazon Region of Brazil, 1998-1999: Entomologic and Epidemiologic Findings gan Pedro F. C. Vasconcelos, Amélia P.A.T. Rosa, Sueli G. Rodrigues, Elizabeth S.T. Rosa, Hamilton A.O. Monteiro, Ana C.R. Cruz, Vera L.R.S. Barros, Maria R. Souza, Jorge F.S.T. Rosa

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