Abnormalities of serum immunoglobulins (IgA, IgM, IgG) and recurring infections of the respiratory tract.
D000361:Agammaglobulinemia / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D006967:Hypersensitivity / Q000276:immunology; D005779:Immunodiffusion; D007122:Immunoelectrophoresis; D007074:Immunoglobulin G / Q000032:analysis*; D007075:Immunoglobulin M / Q000032:analysis*; D007223:Infant; D010031:Otitis / Q000097:blood; D012141:Respiratory Tract Infections / Q000188:drug therapy / Q000276:immunology*; D005719:gamma-Globulins / Q000032:analysis*
D007074:Immunoglobulin G; D007075:Immunoglobulin M; D005719:gamma-Globulins