Severe Combined Immunodeficiency (SCID)
|Severe Combined Immunodeficiency (SCID)||
Severe combined immunodeficiency (SCID) is the name for a group of inherited immune system disorders. SCID disorders are the most severe of the inherited immune system disorders. Babies are born with these disorders, which can become life-threatening within the first year of life. SCID is rare. About 1 in 200,000 babies are born with SCID.