Across
- 2. Uses a toxic product made by the germ.
- 4. Different viruses have been used as ______ such as influenza and measles virus.
- 5. Uses a killed version of the virus.
- 6. The vaccine immune response goes to key parts of the virus.
Down
- 1. The vaccine creates a long-lasting effect.
- 3. Produces proteins with the help of a cell's ribosomes.