title: [Not Available].
authors.affiliation: Universidade Federal do Maranhão (UFMA), São Luis, MA, Brazil. Electronic address: gracaviana@globo.com.
authors.forename: Graça Maria
authors.initials: GM
authors.lastname: de Castro Viana
authors.affiliation: Universidade Federal do Maranhão (UFMA), São Luis, MA, Brazil.
authors.forename: Maria do Desterro Soares Brandão
authors.initials: Mdo D
authors.lastname: Nascimento
authors.affiliation: Universidade Federal do Maranhão (UFMA), São Luis, MA, Brazil.
authors.forename: Rodrigo Artur Souza
authors.initials: RA
authors.lastname: de Oliveira
authors.affiliation: Universidade Federal do Maranhão (UFMA), São Luis, MA, Brazil.
authors.forename: Alessandro Carvalho
authors.initials: AC
authors.lastname: Dos Santos
authors.affiliation: Universidade Federal do Maranhão (UFMA), São Luis, MA, Brazil.
authors.forename: Carolina
authors.initials: C
authors.lastname: de Souza Galvão
authors.affiliation: Universidade Federal do Maranhão (UFMA), São Luis, MA, Brazil.
authors.forename: Marcos Antonio Custódio Neto
authors.initials: MA
authors.lastname: da Silva
keywords: Blood donors; Human T-lymphotropic virus 1; Human T-lymphotropic virus 2; Seroepidemiologic studies