Crossword of health

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Across
  1. 3. Infection rarely transmitted to humans by animals
  2. 4. When you are bitten by a poisonous snake you are .....?
  3. 6. substance produced by a microorganism to kill others
  4. 7. If you are not negative you are .....?
  5. 8. When you wash your hands you use the .....?
  6. 9. Infectious disease that is transmitted through saliva and commonly called koch's bacillus
  7. 11. multiplication of microorganisms in host tissues
Down
  1. 1. one who studied medicine
  2. 2. When an adult is sick and does not work is he in ........?
  3. 5. Infection of the lungs
  4. 8. inflammation of the oropharynx
  5. 10. When a person stumbles, do you say?