Health

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Across
  1. 2. The administration of a vaccine to stimulate the immune system
  2. 6. microorganism that carries disease
  3. 7. type of white blood cell that produces antibodies
  4. 9. Swimmer
  5. 11. occurrence of cases of a disease in a population
  6. 12. passing on a pathogen
  7. 13. habitat of a pathogen
  8. 15. Immunity that results from the body's own immune system
Down
  1. 1. single celled organism that can be both helpful and hurtful
  2. 3. defense mechanisms of the immune system that develop in response to exposure to specific pathogens
  3. 4. immunity that is transferred
  4. 5. organism or agent that carries and transmits a pathogen from one host to another.
  5. 8. invasion of pathogens into the body
  6. 10. epidemic that spreads over a large area
  7. 14. submicroscopic infectious agent that requires a host cell to replicate and can cause various diseases in animals, plants, and bacteria.
  8. 16. type of white blood cell that destroys infected cells