title: Differences in HIV strains may underlie disease patterns.
authors.forename: J
authors.initials: J
authors.lastname: Cohen
mesh_terms: D000818:Animals; D019049:Developed Countries; D003906:Developing Countries; D005260:Female; D015658:HIV Infections / Q000453:epidemiology / Q000635:transmission / Q000821:virology*; D015497:HIV-1 / Q000145:classification / Q000254:growth & development / Q000472:pathogenicity*; D006801:Humans; D007801:Langerhans Cells / Q000821:virology*; D008297:Male; D013785:Thailand / Q000453:epidemiology; D014621:Vagina / Q000821:virology