Sexually-transmitted diseases.
D000293:Adolescent; D000328:Adult; D002177:Candidiasis / Q000635:transmission; D002648:Child; D005260:Female; D006515:Hepatitis B virus; D006561:Herpes Simplex / Q000635:transmission; D006801:Humans; D008297:Male; D012749:Sexually Transmitted Diseases; D014526:Urethritis / Q000635:transmission