Steatorrhea associated with Giardia infection is seen in which immunoglobulin deficiency ?: (A) IgE, (B) IgA, (C) IgG, (D) IgM
Answer is B. IgA is the secretory antibody prevent gut infection if IgA level are low predispose to Giardia infection. - IgA1 - present in serum - Ig A2 - present in mucosal surface & body secretions