Across
- 1. when germs fight against the immune system
- 4. tearing into pieces
- 6. the B-cells secrete this kind of weapon proteins
- 9. it occurs in flu virus or Coronavirus and allows the virus to change its DNA making vaccine less efficent
- 12. immunty that remains in your body for years
- 13. a bad reaction triggered by a medecine
Down
- 2. when every body is immune against a disease, the germ can't spread
- 3. rumors that continue to influence actions and memory
- 5. invaders
- 7. improvement via diagnosis, treatment, and illness prevention
- 8. (to) make the body react by an immune response
- 10. it contains a weak cousin of the real germ
- 11. it provokes death