Herd Immunity

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Across
  1. 4. virus which has caused the most recent pandemic
  2. 6. the body's ability to protect itself against a disease
  3. 7. large part of a population is immune to a disease
Down
  1. 1. a reaction by the body to a disease
  2. 2. a disease causing organism
  3. 3. a substance used to stimulate the production of antibodies that provide immunity against a disease
  4. 5. protected against a disease