Immunodeficiency Disorders Directory

Most of the time, the immune system protects the body from germs and other threats. But sometimes it gets off track and doesn't react or partially reacts. This is called immunodeficiency, and it makes you less able to fight infections. It can result from medications or illness, or you may have had it since birth. Follow the links below to find WebMD's comprehensive coverage about immunodeficiency disorders, how they are treated, and much more.

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