Crossword Puzzle

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Across
  1. 5. relating to or affecting respiration: how we breathe
  2. 7. practices conducive to maintaining health and preventing disease, especially through cleanliness
  3. 8. the state of having no protection from something harmful
Down
  1. 1. an infectious agent that can only replicate within a host organism
  2. 2. a physical or mental feature which is regarded as indicating a condition of disease
  3. 3. a microorganism, especially one which causes disease
  4. 4. to win victory over
  5. 5. to regain a normal position or condition (as of health)
  6. 6. to affect with a disease causing organism