Your body’s best defense is your own immune system.

What Is Immune Deficiency?

A Definition of Immune Deficiency Immune deficiency, or immunodeficiency, is a disorder that prevents the body from effectively fighting infections and diseases. This means that the immune system is not as strong as normal, which often results in recurring and life-threatening infections. More than 250 primary immunodeficiency diseases are recognized by the World Health Organization, […]

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