Health crossword puzzle- Samuel Hreno

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Across
  1. 2. where an infectious agent or a parasite can live, grow, and reproduce
  2. 5. "clue"
  3. 6. are a type of white blood cell called lymphocytes
  4. 8. an unexpected increase in the number of disease cases in a specific geographical area
  5. 9. living organisms that can transmit infectious
  6. 11. a measure of disease that allows us to determine a person's likelihood of having a disease.
  7. 13. the worldwide spread of a new disease
  8. 16. are microscopic organisms that can infect hosts, like humans, plants or animals
  9. 18. study of distribution and determinants of health-related states among specified populations
  10. 19. tailors its attack to a specific antigen previously encountered
  11. 20. how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful
Down
  1. 1. a key player in the adaptive immune response that is responsible for humoral immunity in mammals
  2. 3. The ability of an agent of infection to produce disease
  3. 4. are small single-celled organisms
  4. 7. is the body's first line of defense against germs entering the body
  5. 10. a way germs are moved to the susceptible person
  6. 12. A process by which a person becomes protected against a disease
  7. 14. how commonly or frequently a disease occurs in a specified population
  8. 15. something that causes an effect
  9. 17. is any disease or infection that is naturally transmissible from vertebrate animals to humans