title: A relationship exists between sexually transmitted disease (STD) and the human immunodeficiency syndrome (HIV)
mesh_terms: D004198:Disease Susceptibility; D005260:Female; D006678:HIV / Q000302:isolation & purification; D015658:HIV Infections / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D015994:Incidence; D008297:Male; D012749:Sexually Transmitted Diseases / Q000150:complications* / Q000453:epidemiology; D012883:Skin Ulcer / Q000821:virology