Virus Unit

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Across
  1. 3. a living thing
  2. 6. are microscopic organisms not visible with the naked eye
  3. 7. the study of how diseases affect the health and illness of populations
  4. 8. tiny particles that cause disease in people, other animals and pants.
  5. 9. the expected development of a disease or the chances of getting better
Down
  1. 1. an epidemic that affects many geographical areas at the same time
  2. 2. a microscopic organism such as a bacterium or a virus
  3. 4. any disease producing agent such as a virus
  4. 5. that lives on or in another living thing