Table 2.

Diseases associated with selective IgA deficiency.

Infectious disease	•Recurrent sinopulmonary infections with organisms such as Haemophilus influenzae and Streptococcus pneumoniae •Gastrointestinal infections with Giardia lamblia, Helicobacter pylori
Allergic disease	•Allergic rhinoconjunctivitis •Asthma •Chronic urticaria •Food allergy •Atopic dermatitis
Gastrointestinal disease	•Celiac disease •Nodular lymphoid hyperplasia •Inflammatory bowel disease •Pernicious anemia
Autoimmune disease	•Idiopathic thrombocytopenic purpura •Hemolytic anemia •Juvenile rheumatoid arthritis •Graves’ disease •Systemic lupus erythematosus •Type 1 diabetes mellitus
Malignant disease	•Gastric adenocarcinoma •Lymphoma