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In 1999, on the occasion of the application of the first vaccine dose during the state vaccination campaign against hepatitis B virus (HBV), 390 individuals from the town of Rio Branco, Acre, aged(More)
Between December 1998 and March 2001, for each HTLV-I/II seropositive blood donor (ELISA, Abbott), two HTLV-I/II seronegative blood donors were also chosen. The blood samples were re-tested by ELISA(More)
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