All About Influenza: Part 1 page 1 - 22

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Across
  1. 5. spread by direct or indirect contact with sick person
  2. 6. short for influenza
  3. 7. the first flu vaccine was developed for these people
  4. 9. created by immune system to stop infection
  5. 10. medicine to help you breathe easier
  6. 12. this causes your body to produce antibodies to protect you
Down
  1. 1. instrument needed to see a virus
  2. 2. tiny organism that can only reproduce inside a cell
  3. 3. like the flu but not as severe
  4. 4. change into something different
  5. 8. signs of an illness
  6. 11. their immune system is not fully developed