06/29/2015 04:46 PM EDT
Source: National Institute of Allergy and Infectious Diseases -
Related MedlinePlus Page: Immune System and Disorders
Related MedlinePlus Page: Immune System and Disorders
Severe Combined Immunodeficiency (SCID)
SCID is a group of rare disorders caused by mutations in different genes involved in the development and function of infection-fighting T and B cells. Infants with SCID appear healthy at birth but are highly susceptible to severe infections. The condition is fatal, usually within the first year or two of life, unless infants receive immune-restoring treatments, such as transplants of blood-forming stem cells, gene therapy, or enzyme therapy. More than 80 percent of SCID infants do not have a family history of the condition. However, development of a newborn screening test has made it possible to detect SCID before symptoms appear, helping ensure that affected infants receive life-saving treatments.
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