title: Prior HIV-2 infection reduces chance of acquiring HIV-1. Senegal.
mesh_terms: D000349:Africa; D017954:Africa South of the Sahara; D000352:Africa, Northern; D000354:Africa, Western; D001519:Behavior; D001695:Biology; D003906:Developing Countries; D004194:Disease; D004467:Economics; D015658:HIV Infections; D007109:Immunity; D010827:Physiology; D012106:Research; D012675:Senegal; D012725:Sexual Behavior; D013672:Technology; D014612:Vaccines; D014777:Virus Diseases
chemical_list: D014612:Vaccines
keywords: Africa; Africa South Of The Sahara; Behavior; Biology; Developing Countries; Diseases; Economic Factors; French Speaking Africa; Hiv Infections; Immunity; Physiology; Prostitutes; Research And Development; Senegal; Sex Behavior; Technology; Vaccines; Viral Diseases; Western Africa