title: Biological effects of sexual freedom.
mesh_terms: D001290:Attitude; D001424:Bacterial Infections / Q000635:transmission; D002353:Carrier State / Q000175:diagnosis; D005260:Female; D006801:Humans; D008297:Male; D012737:Sex Factors; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases / Q000150:complications / Q000453:epidemiology* / Q000209:etiology; D006113:United Kingdom; D014777:Virus Diseases / Q000635:transmission