title: Recent evolutionary history of human immunodeficiency virus type 1 subtype B--response.
abstract: The year of origin estimated by Lukashov and Goudsmit for HIV-1 subtype B is 1976 (95% CI, 1974-1977); this is significantly different from our prior estimate, 1967 (95% CI, 1960-1971). We review published evidence, which suggests that their estimate is too late.
authors.forename: Una R
authors.initials: UR
authors.lastname: Smith
authors.forename: Carla
authors.initials: C
authors.lastname: Kuiken
authors.forename: Bette T
authors.initials: BT
authors.lastname: Korber
mesh_terms: D019143:Evolution, Molecular; D015658:HIV Infections / Q000453:epidemiology; D015497:HIV-1 / Q000145:classification / Q000235:genetics*; D006801:Humans; D010802:Phylogeny