Immunity

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Across
  1. 4. – Molecules on the surface of a pathogen that trigger an immune response.
  2. 5. – Lymphocytes that remain in the blood and respond quickly if the same pathogen enters again.
  3. 6. – Immunity produced when the body makes its own antibodies after infection or vaccination.
  4. 7. – A microorganism that causes disease.
  5. 8. – Proteins made by lymphocytes that bind to antigens and help destroy pathogens.
Down
  1. 1. – Injecting a harmless form of a pathogen to stimulate immunity.
  2. 2. – Immunity gained when antibodies are received from another source, rather than being made by the body.
  3. 3. – A type of white blood cell that produces antibodies.