Medicine key words

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Across
  1. 2. an organism that can be seen only through a microscope
  2. 3. the romans built these to transport fresh water to highly populated areas
  3. 4. heating liquid or food to kill microorganisms
  4. 7. a substance used to stimulate the production of antibodies and provide immunity against a disease
  5. 10. medicines that treat infections by killing bacteria
  6. 11. a heart monitor invented by Einthoven in the early 1900s
Down
  1. 1. protected against, not affected by a disease
  2. 5. a substance that stops or slows down the growth of microorganisms
  3. 6. an unpleasant or unhealthy smell
  4. 8. a powerful x-ray that provides a cross section of the human body
  5. 9. to give a weak form of a disease to a person or animal, usually by injection, as a protection against that disease