Across
- 5. the period between exposure and infection
- 7. got the virus 12,000 years ago
- 8. Something you get on your skin
- 9. what makes up sicknesses
- 10. were infected from may to September
Down
- 1. founder of the vaccine
- 2. something that helps not get the disease
- 3. made out of variola virus
- 4. was infected with smallpox in the 4th century
- 5. were infected with smallpox in 1524 to 1528
- 6. what is smallpox made of