| human immunodeficiency virus (hiv) seropositivity in intravenous (i.v.) drug abusers in three cities of italy: possible natural history of hiv infection in i.v. drug addicts in italy. | the prevalence of human immunodeficiency virus (hiv) antibodies and the symptoms induced [persistent generalized lymphadenopathy (pgl), aids-related complex (arc), acquired immunodeficiency syndrome (aids)] was evaluated in several groups of intravenous (iv) drug abusers in three large italian cities (milan, bologna, and rome). the earliest evidence of seropositivity in sera collected from patients with acute viral hepatitis dates back to 1979 in milan and to 1981 in bologna with peaks in 1983 i ... | 1987 | 3430144 |