What Causes a Weakened Immune System?

You’ve probably heard a lot about how important your immune system is,…

Common Variable Immunodeficiency: Symptoms and Causes

Overview Common variable immunodeficiency (CVID) is an immune system disorder that causes…

4 Big Things You Should Know About Primary Immunodeficiency Diseases

Other possible symptoms of PIDDs include digestive issues, delayed growth or development,…

Chronic Granulomatous Disease: Causes, Symptoms, and Treatments

Overview Chronic granulomatous (gran-u-LOM-uh-tus) disease (CGD) is an inherited disorder that occurs…

X-Linked Aagammaglobulinemia: Causes, Symptoms, and Treatments

Overview X-linked agammaglobulinemia (a-gam-uh-glob-u-lih-NEE-me-uh)—also called XLA—is an inherited (genetic) immune system disorder…