Homosexuality--a risk factor in infectious disease.
D001424:Bacterial Infections / Q000635:transmission; D003141:Communicable Diseases / Q000635:transmission*; D006716:Homosexuality; D006801:Humans; D008297:Male; D011528:Protozoan Infections / Q000635:transmission; D012306:Risk; D012749:Sexually Transmitted Diseases; D014777:Virus Diseases / Q000635:transmission