Stuff (*_*)

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Across
  1. 3. Gives immunity
  2. 5. Releases antibody's
  3. 7. A percentage of people that needs to vaccinated
  4. 9. A microscopic disease
  5. 10. Helps build immunity
Down
  1. 1. A "lock" on a pathogen cell
  2. 2. A "key" on a B cell
  3. 4. In the seconds line of defense
  4. 6. Engulfs pathogens
  5. 8. Slows down and sometimes kills pathogens