OUTBREAK INVESTIGATION

Question 1

8 levels of disease:

Answer 1

1. baseline
2. sporadic
3. endemic
4. hyperendemic
5. epidemic
6. outbreak
7. cluster
8. pandemic

Question 2

The amount of a disease that is usually present in a community; the observed but not necessarily the desired level; regarded as the expected level of disease

Answer 2

baseline

Question 3

A disease that occurs infrequently and
irregularly

Answer 3

sporadic

Question 4

The constant presence and/or usual prevalence of a disease or infectious agent in a population within a geographic area

Answer 4

endemic

Question 5

The persistently high levels of disease
occurrence

Answer 5

hyperendemic

Question 6

An increase, often sudden, in the number of cases of a disease above what is normally expected in that population in that area

Answer 6

epidemic

Question 7

Similar to an epidemic but is often used for a more limited geographic area

Answer 7

outbreak

Question 8

An aggregation of cases grouped in place and time that are suspected to be greater than the number expected, even though the expected number maybe unknown

Answer 8

cluster

Question 9

An epidemic that has spread over several countries or continents, usually affecting a large number of people An epidemic that has spread over several countries or continents, usually affecting a large number of people

Answer 9

pandemic

Question 10

—– Occurrence of disease cases or deaths
- limited to specified group of individuals during a short
period of time
- clearly on excess of normal expectancy (Last, 1988)

Answer 10

epidemic

Question 11

How epidemics occur?

Answer 11

• Agents and hosts are present in adequate number
• Agent can be effectively conveyed from source to host