SCID

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Definition

Noun: 1. Severe Combined Immunodeficiency (SCID): A rare, congenital (present from birth) disorder of the immune system. It is characterized by the severe impairment or complete absence of the function of T cells and, often, B cells. This leaves the body unable to fight off infections. If not treated, it is typically fatal in early childhood.

Usage
  • SCID is primarily used as a medical term. It is often preceded by the article "the" when referring to the condition in general, or used without an article when referring to a specific diagnosis.
  • Example: "Newborn screening can help identify infants with SCID early." (Referring to the condition)
  • Example: "The baby was diagnosed with SCID." (Referring to a specific case)
Examples
  • "SCID is sometimes called 'bubble boy disease' due to the isolation required to protect patients from infection."
  • "A bone marrow transplant is a common treatment for SCID."
  • "Researchers are studying gene therapy as a potential cure for some forms of SCID."
Advanced Usage
  • As a modifier: SCID can be used adjectivally before other nouns to specify a type or model.
    • Example: "The SCID mouse is a laboratory mouse with a severely compromised immune system, used in medical research."
Variants and Related Words
  • Severe Combined Immunodeficiency: The full, formal name for SCID.
  • Immunodeficiency: A broader term for any disorder where the immune system's ability to fight infectious disease is compromised or absent.
  • Primary Immunodeficiency: A category of congenital immune disorders that includes SCID.
Synonyms
  • Bubble boy disease (informal, based on a historical case)
  • Alymphocytosis (an older, less specific term)
Notes
  • SCID is an acronym. It is typically pronounced as a single word (/skɪd/) rather than by spelling out each letter.
  • It represents a group of genetic disorders, not a single disease with one cause. Different genetic mutations can lead to SCID.
Noun
  1. a congenital disease affecting T cells that can result from a mutation in any one of several different genes; children with it are susceptible to infectious disease; if untreated it is lethal within the first year or two of life

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