Across
- 2. the study of the determinants, occurrence, and distribution of health and disease in a defined population
- 4. the defense system with which you were born. It protects you against all antigens. Innate immunity involves barriers that keep harmful materials from entering your body
- 6. specialized immunity for particular pathogens
- 9. an ability of an organism to infect the host and cause a disease
- 11. diseases that can affect your skin, lungs, brain, blood and other parts of your body
- 15. a type of white blood cell called lymphocytes
- 17. illnesses you get from tiny organisms that use your cells to make more copies of themselves
- 19. commonly spread through the direct transfer of bacteria, viruses or other germs from one person to another
- 20. an infectious disease that has jumped from a non-human animal to humans
Down
- 1. a disease event in which there are more cases of a disease than expected spread over several Page 4 countries or continents, usually involving person-to-person transmission and affecting a large number of people
- 3. the number of individuals with the disease either at a specific point in time (the point prevalence) or over a specified time period (the period prevalence)
- 5. protect you from infection by making proteins called antibodies
- 7. the number of newly diagnosed cases of a disease
- 8. how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful
- 10. treatment with a vaccine to produce immunity to a particular infectious disease or pathogen.
- 12. an unexpected increase in the number of disease cases in a specific geographical area.
- 13. Disease that results from an infection transmitted to humans and other animals by blood-feeding anthropods, such as mosquitoes, ticks, and fleas
- 14. viruses, bacteria, fungi, protozoa, and helminths (worms)
- 16. Name
- 18. Any person, animal, plant, soil or substance in which an infectious agent normally lives and multiplies