title: Transmission.  HIV continues to spread in Europe's marginalized individuals.
mesh_terms: D005060:Europe / Q000453:epidemiology; D015658:HIV Infections / Q000453:epidemiology / Q000635:transmission*; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D012307:Risk Factors; D015819:Substance Abuse, Intravenous