CDC- INTRODUCTION TO EPIDEMIOLOGY
QUESTIONS WITH CORRECT ANSWERS 2025
Definition of Epidemiology - CORRECT ANSWER -
The study of the distribution and determinants of health-
related states or events in specified populations, and the application of this study to the co
ntrol of health problems.
The study of epidemiology uses - CORRECT ANSWER -
statistics, observation, biology
Frequency - CORRECT ANSWER -
number of health events (number of cases) in relationship to the size of the population
Pattern - CORRECT ANSWER -the occurrence of health related events based on-
Time: (annual, seasonal, weekly)
Place: (urban/rural, school/work)
Person: (risk of illness, sex, age, economic status)
Determinant - CORRECT ANSWER -
A factor or event that is capable of bringing about a change in the health status of a popul
ation.
What do epidemiologists study? - CORRECT ANSWER -Both communicable and non-
communicable health problems
What is an epidemiologist's top priority when given a patient? - CORRECT ANSWER -
Determine the cause, and the number of people exposed to it (focuses on the population n
ot the specific patient)
, 400 BCE - CORRECT ANSWER -
Hippocrates tries to explain that environmental factors and behaviors might influence diseas
e
1662 CE - CORRECT ANSWER -
John Graunt publishes the first quantifiable data for mortality between different groups
1800 CE - CORRECT ANSWER -
William Farr (the father of viral statistics) builds on Gaunt's work by collecting, assembling,
and evaluating viral statistic data
1854 CE - CORRECT ANSWER -
John Snow (father of field epidemiology) realizes through data and observation that the Bro
ad Street pump was the source of a cholera epidemic
Epidemiologists must assess community health by asking - CORRECT ANSWER -
1. What are some potential and current health problems in the community?
2. Where are they occurring?
3. Are there specific populations with increased risk?
4. Which problems have declined over time?
5. Which ones are increasing or have the potential to increase?
6. How do these patterns relate to distribution of health care?
How do epidemiologists complete the clinical picture? - CORRECT ANSWER -
They can identify the cause even if the diagnosis is unknown to help categorize the disease
Public Health Surveillance - CORRECT ANSWER -
the systematic collection, analysis, and interpretation of health data to gain knowledge of th
e pattern of disease occurrence in order to control and prevent disease in the community.
QUESTIONS WITH CORRECT ANSWERS 2025
Definition of Epidemiology - CORRECT ANSWER -
The study of the distribution and determinants of health-
related states or events in specified populations, and the application of this study to the co
ntrol of health problems.
The study of epidemiology uses - CORRECT ANSWER -
statistics, observation, biology
Frequency - CORRECT ANSWER -
number of health events (number of cases) in relationship to the size of the population
Pattern - CORRECT ANSWER -the occurrence of health related events based on-
Time: (annual, seasonal, weekly)
Place: (urban/rural, school/work)
Person: (risk of illness, sex, age, economic status)
Determinant - CORRECT ANSWER -
A factor or event that is capable of bringing about a change in the health status of a popul
ation.
What do epidemiologists study? - CORRECT ANSWER -Both communicable and non-
communicable health problems
What is an epidemiologist's top priority when given a patient? - CORRECT ANSWER -
Determine the cause, and the number of people exposed to it (focuses on the population n
ot the specific patient)
, 400 BCE - CORRECT ANSWER -
Hippocrates tries to explain that environmental factors and behaviors might influence diseas
e
1662 CE - CORRECT ANSWER -
John Graunt publishes the first quantifiable data for mortality between different groups
1800 CE - CORRECT ANSWER -
William Farr (the father of viral statistics) builds on Gaunt's work by collecting, assembling,
and evaluating viral statistic data
1854 CE - CORRECT ANSWER -
John Snow (father of field epidemiology) realizes through data and observation that the Bro
ad Street pump was the source of a cholera epidemic
Epidemiologists must assess community health by asking - CORRECT ANSWER -
1. What are some potential and current health problems in the community?
2. Where are they occurring?
3. Are there specific populations with increased risk?
4. Which problems have declined over time?
5. Which ones are increasing or have the potential to increase?
6. How do these patterns relate to distribution of health care?
How do epidemiologists complete the clinical picture? - CORRECT ANSWER -
They can identify the cause even if the diagnosis is unknown to help categorize the disease
Public Health Surveillance - CORRECT ANSWER -
the systematic collection, analysis, and interpretation of health data to gain knowledge of th
e pattern of disease occurrence in order to control and prevent disease in the community.
