Across
- 2. a blood cell which destroys pathogens
- 4. a disease now eradicated
- 5. the father of vaccination
- 8. a small amount of pathogen injected into the body
- 9. what you have when you can fight off disease
Down
- 1. a pathogen that replicates inside cells
- 3. a pathogen that kills by releasing toxins
- 6. on the outside of white blood cells
- 7. a disease similar to smallpox