Vaccination

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Across
  1. 3. epidemic spread over several continents
  2. 5. live or killed microorganism or protein or toxin from the microorganism that is injected to stimulate immunity and prevent an infectious disease
  3. 6. Jenner Discovered the first vaccine
Down
  1. 1. when enough people become immune to the disease to make its spread unlikely
  2. 2. technology Vaccines New technique of making vaccines through teaching the cells how to make a protein
  3. 4. Food and Drug Administration approves vaccines after safety and efficacy trials are conducted
  4. 5. A scientist who studies viruses