Disease Detectives

3. a phenomenon where a sufficient proportion of a population is immune to a disease, making it difficult for the disease to spread
6. A form of incidence that measures frequency of disease, chronic conditions, or injury in a particular population for a limited time, such as during an outbreak.
8. A process that begins when an agent leaves its source through a portalof exit, is conveyed by some mode of transmission, and then enters through an appropriate portal of entry to infect a susceptible host.
10. A rate that measures the frequency with which a health problem, such as a new injury or case of illness, occurs in a population.
12. The period following exposure, when pathologic changes are not apparent, and ending with the onset of symptoms of an infectious disease.
13. Immunity conferred by an antibody produced in another host. This type of immunity can be acquired naturally by an infant from its mother or artificially by administration of an antibody-containing preparation (antiserum or immune globulin)
14. branch of epidemiology that utilizes the findings from epidemiologic studies to (1) define and track disease for informed decisions.
15. The period following exposure, when pathologic changes are not apparent, ending with the onset of symptoms of a chronic disease.

1. the immunity which results from the production of antibodies by the immune system in response to the presence of an antigen.
2. a branch of epidemiology that focuses on identifying the causes and determinants of health-related events
4. A set of standard criteria for determining whether a person has a particulardisease or health condition. A case definition specifies clinical criteria and details of time,place, and person.
5. A pathway into the host that gives an agent access to tissue that will allow it to multiply or act.
7. A measure of the frequency of occurrence of death in a defined population during a specified time interval.
9. The proportion of people who are exposed to an agent and become infected.
11. A measure of association used in comparative studies to quantify the relationship between an exposure and a health outcome;