Smallpox

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Across
  1. 3. this person was a test subject for variolation
  2. 6. this person made the basis of vaccination
  3. 8. what smallpox usually left behind after it is done
  4. 9. a way to immunize an uninfected person from smallpox
  5. 11. a way to immunize someone from a virus or disease
  6. 12. this symptom is what smallpox was known for
Down
  1. 1. this is what smallpox was
  2. 2. where smallpox started
  3. 4. another word for the smallpox virus
  4. 5. it spread easily from one another
  5. 7. 3 out of 10 people had this when infected
  6. 10. using smallpox as a weapon in the war