Immune system

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Across
  1. 2. also called white blood cells
  2. 4. acquired immunodeficiency syndrome
  3. 5. a drug to reduce the symptoms caused by the release of Histamine
  4. 6. any foreign substance that triggers an immune response
  5. 8. human Immunodeficiency syndrome
  6. 10. substances that cause allergies
Down
  1. 1. process of receiving a vaccine
  2. 2. disease-causing invaders
  3. 3. a chemical released by our body when it needs to fight allergens
  4. 4. specific particles that destroy antigens
  5. 7. unusually high selectivity to some substance
  6. 9. Special version of antigens that gives boosts your immunity