Across
- 2. An injection of a drug or vaccine
- 6. An epidemic occurring worldwide, crossing international boundaries and usually affecting a large number of people
- 8. The organs and processes of the body that provide resistance to infection and toxins
- 9. The action of stopping something from happening or arising
- 10. The science of protecting and improving the health of people and their communities
Down
- 1. the official launch or introduction of a new product or service
- 3. Another word for vaccination
- 4. A substance injected to stimulate the production of antibodies
- 5. Secondary, typically undesirable effects of a drug or medical treatment
- 7. A disease that can be passed from one person to another