Across
- 6. Made from weakened viruses.
- 7. Once the vaccine is _______, it can be received world wide.
- 9. Resistance from something.
- 10. Vaccines have to get approval through the ___.
Down
- 1. Drugs to help reduce the symptoms of an illness.
- 2. To create something over time.
- 3. The person who studies viruses.
- 4. A type of sickness.
- 5. Changing viruses ____ to not get stronger.
- 8. In Phase 1, people receive the ____ vaccine.