Herd Immunity

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