Across
- 2. Foreign substance that can stimulate an immune response
- 4. They transport pathogens
- 6. They interfere with viral growth
- 7. Chronic disease, difficulty breathing
- 8. They increase the flow of bllod and fluids to an affected area
Down
- 1. An increase in body temperature
- 2. Their main function is to tag antigens for destruction
- 3. Any disease that can be transmitted from animals to humans
- 5. The injection of a weakened pathogen, to produce immunity