Update: acquired immunodeficiency syndrome--Europe.
D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D000293:Adolescent; D000328:Adult; D000349:Africa / Q000208:ethnology; D002648:Child; D002675:Child, Preschool; D005060:Europe; D005260:Female; D006716:Homosexuality; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D012306:Risk; D019966:Substance-Related Disorders / Q000150:complications; D065227:Transfusion Reaction; D014900:West Indies / Q000208:ethnology