Global programme on AIDS. Unexplained severe immunosuppression without evidence of HIV infection.
D015496:CD4-Positive T-Lymphocytes; D003937:Diagnosis, Differential; D015658:HIV Infections / Q000175:diagnosis; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000175:diagnosis / Q000209:etiology* / Q000276:immunology; D008231:Lymphopenia / Q000209:etiology