Infectious Disease

4. Total number of cases of a disease existing within a population
5. Wipes out infected or cancerous cells
6. The exchange of pathogens from one person or animal to another person or animal
10. Single celled organisms that can survive on their own. Only a small percentage cause disease.
12. Branch of medicine dealing with the incidence, distribution, and possible control of disease
13. Used to fight against the disease as it is a reaction of the body
16. Refers to the action of structures and substances that are naturally present
18. Or acquired immunity, refers to immunity that occurs in response to exposure to a particular antigen

1. Epidemic of an infectious disease that has spread over a large region
2. Simple and effective way of protecting people from harmful diseases
3. Long-term host of the pathogen of the infectious disease
7. Widespread occurrence of an infectious disease in a community
8. Infection transmitted by arthropods such as mosquitoes
9. Cannot survive without a host, extremely small and most of them cause disease. They reprogram cells to help them reproduce.
11. Pathogens that can cause infections or infectious diseases
14. Disease that can be transmitted from humans to animals
15. Neutralize pathogens by binding to them
17. The ability of a pathogen to cause damage to a host
19. Number of newly diagnosed cases of a disease