AIDS in persons 50 years of age and older.
D017088:AIDS-Related Opportunistic Infections / Q000453:epidemiology; D000163:Acquired Immunodeficiency Syndrome / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control; D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D012307:Risk Factors