Parvovirus B19 is a common human pathogen which can cause severe syndromes,
including aplastic anemia and fetal hydrops. The mapping of the first parv
ovirus B19-derived CD8(+) T-lymphocyte epitope is described. This HLA-B35-r
estricted peptide derives from the nonstructural (NS1) protein and is stron
gly immunogenic in B19 virus-seropositive donors.