Opportunistic infections.
D001230:Aspergillus / Q000254:growth & development; D001232:Aspergillus fumigatus / Q000166:cytology; D001249:Asthma / Q000150:complications; D001402:B-Lymphocytes / Q000276:immunology; D001419:Bacteria / Q000166:cytology; D001424:Bacterial Infections / Q000175:diagnosis / Q000188:drug therapy; D002102:Cadaver; D004361:Drug Tolerance / Q000187:drug effects; D005658:Fungi / Q000166:cytology; D006412:Hematopoietic Stem Cells / Q000502:physiology; D006801:Humans; D007111:Immunity, Cellular; D007153:Immunologic Deficiency Syndromes / Q000150:complications; D007239:Infections / Q000175:diagnosis / Q000209:etiology* / Q000276:immunology; D016030:Kidney Transplantation; D007938:Leukemia / Q000150:complications; D007970:Leukopenia / Q000150:complications; D008214:Lymphocytes / Q000502:physiology; D009181:Mycoses / Q000175:diagnosis; D009369:Neoplasms / Q000150:complications; D011183:Postoperative Complications; D013601:T-Lymphocytes / Q000276:immunology; D014181:Transplantation Immunology; D014184:Transplantation, Homologous