Across
- 4. triggering the body to produce antibody against the pathogen, without causing the illness.
- 6. a disease that has spread all over the world.
- 7. the start of a disease
- 8. to stay somewhere away from other people
- 9. contain a weakened or inactivated pathogen.
- 10. a new generation of vaccines, contain a messenger RNA
- 11. the first person to get a new disease
- 12. when a disease passes very easily from one person to another
Down
- 1. the avoidance of close contact with other people during the outbreak.
- 2. the period between catching the illness and showing symptoms
- 3. a piece of clothing to cover your mouth and nose
- 5. people that have a disease and may pass it to others
- 9. Centers for Disease Control and Prevention.
- 13. the official name for the new coronavirus disease that emerged in China in 2019.