title: Concerning the genesis of AIDS.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000276:immunology*; D002459:Cell Fusion; D006716:Homosexuality; D006801:Humans; D008264:Macrophages / Q000276:immunology*; D008297:Male; D013094:Spermatozoa / Q000276:immunology*