Across
- 3. cutting instruments
- 4. strength of pathogens
- 7. short duration
- 9. present for infection to occur
- 12. ability to resist disease
- 13. life threatening respiratory collapse
Down
- 1. carried by blood
- 2. disease causing organism
- 5. studies of the pattern of disease
- 6. infection with recurrent symptoms
- 8. contact with mucous
- 10. waste able transmitting disease
- 11. touching or contact with contaminated surface