title: The introduction of HIV during 1979-80 in a sexually active homosexual population of Stockholm.
abstract: Serological tests for hepatitis A (HA) and B (HB), syphilis and HIV were performed on blood samples from 3 groups of homosexual men: 220 and 124 asymptomatic men being investigated in 1978 and 1980 respectively and another 98 men suffering from HA during the winter 1979-80. The two asymptomatic groups revealed similar test results with respect to HA, HB and syphilis: about 25% had markers for HA, 50% for HB and 10-16% for syphilis. The 1979-80 HA group had a comparatively high frequency of markers for HB (64%) and for syphilis (34%), indicating that these men were sexually highly active. While all of the men in the 1978 test group were free from HIV antibodies, 2% of the 1980 and 6% of the 1979-80 group had antibodies to the virus. The results indicate that HIV was introduced to the gay population of Stockholm during 1979-80.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000175:diagnosis / Q000635:transmission*; D000914:Antibodies, Viral / Q000032:analysis; D006678:HIV / Q000276:immunology; D015483:HIV Antibodies; D006509:Hepatitis B / Q000635:transmission; D006511:Hepatitis B Antigens / Q000032:analysis; D006716:Homosexuality; D006801:Humans; D008297:Male; D012725:Sexual Behavior; D013548:Sweden
chemical_list: D000914:Antibodies, Viral; D015483:HIV Antibodies; D006511:Hepatitis B Antigens