CVID is a disorder that affects the immune system. The condition involves issues with your B cells, a type of white blood cell. Symptoms can include repeated infections and autoimmune conditions.

Immunodeficiency disorders prevent your body from fighting infections and diseases as well as it should. This type of disorder can make it easier for you to develop viral or bacterial infections.

Common variable immunodeficiency (CVID) is a type of genetic condition called primary immunodeficiency disease (PIDD) that causes low levels of antibodies (protective proteins) in your body. This ...