An inherited immunodeficiency disorder characterized by the absence of mature B cells, resulting in a marked deficiency of all classes of immunoglobulins and recurrent infections?
Bruton X-linked agammaglobulinemia
An immunologlobulin deficiency characterized by the absence of serum and secretory IgA
Selective IgA deficiency
A primary immunodeficiency characterized by hypocalcemic tetany due to underdevelopment of the thymus is