HideShow resource information
Epidemiology today is largely directed at...?
Chronic disease
1 of 16
What are the determinants of disease?
Host, Agent and environment
2 of 16
A factor that can influence the exposure to disease causing agents ?
Immunocompromised or nutritionally deficient
3 of 16
What is an endemic?
The constant low level presence of a disease or infection defined to a geographic location
4 of 16
What is attack rate ?
the cumulative incidence of infection in a population observed over a period of time during an epidemic
5 of 16
What is incidence?
No. of new events occurring in a defined population during a specified period of time
6 of 16
What is prevelence?
proportion of people who have a specific condition at any specified time - the number of new and exsisting cases / the total population
7 of 16
What is aetiology?
postulated cause of disease specifically those that utilise pathogenic medium
8 of 16
What is latency/latent period?
the delay between exposure and disease , the period of initiation of infection to its detection
9 of 16
The incubation period is the....
time between first contact with an infectious agent and the appearance of the first disease symptom
10 of 16
What is morbidity?
the relative incidence of a disease
11 of 16
What is the odds ratio formula?
odds that an exposed person develops the disease / odds that a non-exposed person develops the disease
12 of 16
What are the first 3 steps in an outbreak investigation?
preliminary epidemiologic investigation -> environmental investigation -> Specimen collection & lab analysis
13 of 16
What are the final 3 steps in an outbreak investigation?
Implementation of control measures -> case control study -> conclusion and dissemination of findings
14 of 16
What is an experimental study?
a study in which conditions are in direct control of the investigator
15 of 16
A cohort study examines....
any designated group individuals who are followed or traced over time
16 of 16


No comments have yet been made

Similar Biology resources:

See all Biology resources »