Vaccines & The Immune System

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Across
  1. 1. the protein on the surface of the coronavirus used as a target in COVID-19 vaccines
  2. 3. a molecule on the surface of a pathogen that the immune system recognises as foreign
  3. 5. a substance injected into the body to protect against a disease by training the immune system
  4. 7. an outbreak of a disease that spreads across many countries or the whole world
  5. 8. A type of molecule used in some modern vaccines to instruct cells to make a protein
  6. 9. a protein produced by white blood cells that binds to and neutralises a specific antigen
Down
  1. 2. a microorganism, such as a virus or bacterium, that causes disease
  2. 4. a type of white blood cell that plays a key role in the immune response (e.g., B cells and T cells)
  3. 5. In vaccines, a harmless virus used to deliver genetic instructions into human cells
  4. 6. the ability of the body to resist or fight off infections and diseases