Page 1 of 29
NR503 / NR 503 Final Exam Study Guide (Latest 2025):
Population Health, Epidemiology & Statistical Principles
- Chamberlain
Pandemic .....ANSWER.....a global epidemic of disease that
spreads to more than one continent
Outbreak .....ANSWER.....the occurrence of disease in excess of
what would normally be expected in a community, location, or
time of year. May last a matter of days, weeks, or years
Quarantine .....ANSWER.....The separation and restriction of
people who were exposed to contagious disease to see whether
they become ill
Isolation .....ANSWER.....seperation of sick people from those who
are not ill
,Page 2 of 29
Disaster epidemiology .....ANSWER.....the use of epidemiology to
assess short- and long- term health effects of disasters. Predict
consequences of of future disasters.
Brings together various topic areas of epidemiology including
acute, communicable disease, environmental health, occupational
health, chronic disease, injury, mental health, and behavioral
health
What causes new strains/outbreaks of disease
.....ANSWER.....Antigenic Drift & Antigentic Shift
Antigenic Drift .....ANSWER.....SMALL CHANGES (mutations) in the
genes of a virus that can lead to surface protein changes
-happen continually over time as virus replicates
, Page 3 of 29
-Why people can get a virus (flu) more than once and why
vaccines have to be updated
Antigenic Shift .....ANSWER.....Abrupt, MAJOR CHANGES in a
virus, resulting in new surface proteins that may affect humans
-happens less than the drift
-example: virus from an animal population now gains the ability
to infect humans
Type A viruses .....ANSWER.....undergo both antigenic drift and
shift
the only flu viruses known to cause PANDEMICS
Type B viruses .....ANSWER.....change only by the more gradual
process of antigenic shift
NR503 / NR 503 Final Exam Study Guide (Latest 2025):
Population Health, Epidemiology & Statistical Principles
- Chamberlain
Pandemic .....ANSWER.....a global epidemic of disease that
spreads to more than one continent
Outbreak .....ANSWER.....the occurrence of disease in excess of
what would normally be expected in a community, location, or
time of year. May last a matter of days, weeks, or years
Quarantine .....ANSWER.....The separation and restriction of
people who were exposed to contagious disease to see whether
they become ill
Isolation .....ANSWER.....seperation of sick people from those who
are not ill
,Page 2 of 29
Disaster epidemiology .....ANSWER.....the use of epidemiology to
assess short- and long- term health effects of disasters. Predict
consequences of of future disasters.
Brings together various topic areas of epidemiology including
acute, communicable disease, environmental health, occupational
health, chronic disease, injury, mental health, and behavioral
health
What causes new strains/outbreaks of disease
.....ANSWER.....Antigenic Drift & Antigentic Shift
Antigenic Drift .....ANSWER.....SMALL CHANGES (mutations) in the
genes of a virus that can lead to surface protein changes
-happen continually over time as virus replicates
, Page 3 of 29
-Why people can get a virus (flu) more than once and why
vaccines have to be updated
Antigenic Shift .....ANSWER.....Abrupt, MAJOR CHANGES in a
virus, resulting in new surface proteins that may affect humans
-happens less than the drift
-example: virus from an animal population now gains the ability
to infect humans
Type A viruses .....ANSWER.....undergo both antigenic drift and
shift
the only flu viruses known to cause PANDEMICS
Type B viruses .....ANSWER.....change only by the more gradual
process of antigenic shift
