Across
- 3. shot
- 7. extra dose of vaccine given earlier
- 8. dead or weakened microbe that protects from illness
- 9. smallest type of microbe
- 10. ability of body to fight disease-causing microbes
- 12. world's first antibiotic
- 13. microbe that can be controlled with antibiotics
- 15. microbe that can't live or grow on its own
Down
- 1. the largest form of microbe
- 2. substance made by the body to help fight disease
- 3. multiplying of microbes in your body
- 4. heated to a temperature that kills harmful microbes
- 5. wastes from drains and toilets
- 6. harmful disease-causing microbes
- 11. rapid spread of disease to many people
- 14. protection from microbes that cause disease