Across
- 3. Microorganism that causes disease
- 5. Cells that remember a pathogen for quicker future response
- 6. Physical barrier preventing entry of pathogens
- 7. Influenza is caused by this type of pathogen
- 8. Protein that binds to specific antigens
- 10. White blood cell that engulfs pathogens
- 11. Rapid global spread of a disease
- 12. Proteins on pathogen surfaces triggering immune response
Down
- 1. Living organism that transmits pathogens
- 2. Resistance of a population to a disease due to vaccination
- 4. Drug that kills bacteria but not viruses
- 9. Dead or inactive pathogens used to stimulate immunity