Biology 9700 · AS & A Level · The immune system

The immune system — practice question

Some children are born with Severe Combined Immune Deficiency (SCID). These children usually have no T-lymphocytes and are affected by many diseases. How may these children be cured?

  • Abone marrow transplantation
  • Bcontinual use of antibiotics
  • Ctransfusion of antibodies
  • Dvaccination against all diseases

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