Across
- 4. protein on microbes that trigger response
- 5. introduction of vaccine containing the disease
- 6. how body protect itself from infection
- 7. one of the main causes of lung cancer
- 8. pox this viral disease was eradicated in 1970's
- 9. liquid component of blood
Down
- 1. blood cells responsible for the defence in your body
- 2. microorganisms that cause diseases
- 3. drugs that work against bacteria
- 4. protein produced by white blood cells as defence