title: Evaluating the patient with recurrent infections.
mesh_terms: D000917:Antibody Formation; D002648:Child; D003165:Complement System Proteins / Q000172:deficiency; D000013:Congenital Abnormalities; D004406:Dysgammaglobulinemia / Q000276:immunology; D006801:Humans; D007109:Immunity; D007111:Immunity, Cellular; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D007158:Immunologic Techniques; D007239:Infections / Q000276:immunology*; D009181:Mycoses / Q000276:immunology; D010586:Phagocytes / Q000276:immunology / Q000502:physiology; D012008:Recurrence; D012882:Skin Tests; D013601:T-Lymphocytes / Q000276:immunology; D014777:Virus Diseases / Q000276:immunology
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D003165:Complement System Proteins