Terminology CD

3. Represents the current or past state of a population.
4. Has little resistance to a specific infectious disease. Capable of being infected.
7. One of the classes of parasites that affect human.
9. Is used to separate ill persons who have a communicable disease from those that are healthy.
13. Is a plant, animal or person that provides a home for another organism
14. period The time of initial contact of a host to an infectious agent
15. period The time during which an infected person can transmit the infectious agent to another person/host.
16. Is a study of how often diseases occur in different groups of people and why. It study distribution and determine the cause and ways to overcome health problems.
18. A person/animal that is with an infected person.
19. A person that harbors a specific infectious agent without clinical symptoms and serve as a potential source of infection.
20. Reflect the occurrence of new disease in a population.

1. The ability of an infection to spread from one to another.
2. of transmission Way the pathogen is transmitted from the portal of exit to the portal of entry. (direct contact, airborne transmission or etc.)
5. of exit Route by which pathogen leaves its reservoir to infect a new host.
6. A disease that can be transmitted from animals to human host.
8. disease An illness that can be transmitted from an infected person , animal or inanimate, source to susceptible host either directly or indirectly.
9. The invasion and growth of a pathogen in the body
10. The presence of a disease in a specific region or population.
11. An infectious agent, like bacteria, virus, fungus or protozoa that can cause disease
12. A degree to which a pathogen can cause disease to a host and inflict harm
17. Represents the number of new cases in a certain time period