Bacteria and Viruses

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Across
  1. 3. being resistant to certain infections
  2. 6. what a virus is made up of
  3. 8. single cell organisms that do not need a host to survive, can be helpful or harmful
  4. 9. the theory that invisible germs can make people sick, helped doctors learn to wash their hands
  5. 10. studies viruses
  6. 11. single celled
Down
  1. 1. a medical doctor, discovered antibiotics
  2. 2. used to treat bacterial infections
  3. 4. very small (nonliving) organisms that need a host to survive and multiply, hijacks a cell
  4. 5. a disease that comes from undercooked food
  5. 6. the father of "microbiology"
  6. 7. caused by a bacteria