Across
- 2. - pandemic
- 5. fruits that boost immune system
- 6. - type of microorganism
- 7. - common symptoms of covid19
- 8. - pfizer biontech vaccine
Down
- 1. dose of vaccine sinovac
- 3. so far not approved for covid19 treatment
- 4. - prevention step on covid19
- 6. C - vitamin that can increase immunity
- 8. name one of the covid19 vaccine