title: HIV prevention: great achievements, more challenges ahead.
authors.forename: Wafaa M
authors.initials: WM
authors.lastname: El-Sadr
authors.forename: David M
authors.initials: DM
authors.lastname: Serwadda
authors.forename: Nirupama
authors.initials: N
authors.lastname: Sista
authors.forename: Myron S
authors.initials: MS
authors.lastname: Cohen
mesh_terms: D015658:HIV Infections / Q000188:drug therapy / Q000517:prevention & control* / Q000635:transmission; D006801:Humans