Infection in the immunocompromised host.
D000163:Acquired Immunodeficiency Syndrome / Q000276:immunology*; D001424:Bacterial Infections / Q000209:etiology*; D016026:Bone Marrow Transplantation; D002177:Candidiasis / Q000209:etiology; D006084:Graft Rejection; D006801:Humans; D007108:Immune Tolerance; D016030:Kidney Transplantation; D009369:Neoplasms / Q000276:immunology*; D012874:Skin Diseases, Infectious / Q000209:etiology*; D014181:Transplantation Immunology; D014777:Virus Diseases / Q000209:etiology*