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Because they lack an immune system to fight off bacteria, viruses, and fungi, babies with Severe combined immunodeficiency (SCID) are at risk of developing life-threatening infections. These infections may be frequent, severe, long-lasting, and hard to treat. Infections may occur in the lungs (pneumonia), around the brain and spinal cord (meningitis), or in the blood stream. Many babies with SCID also get diarrhea that does not go away.

Learn how transplant can treat SCID.

MedlinePlus [Internet]. Bethesda (MD): National Library of Medicine (US); [updated 2013 Sept 16; cited 2013 Sept 16]. Available from: