1|Page
EPIDEMIOLOGY PHC 6001: EXAM 1 QUESTIONS
WITH 100% CORRECT ANSWERS LATEST UPDATE
2026
Chapter 1 ......ANSWER......PUBLIC HEALTH AND EPIDEMIOLOGY
Disease Frequency ......ANSWER......count cases, records. It quantifies
how often a disease arises in a population. Its calculation involves
establishing the disease definition, counting cases (numerator), and
determining the size of the underlying population (denominator)
Disease Distribution ......ANSWER......who, what, when, where of the
disease. It refers to the pattern of disease according to the
characteristics of person (who is getting the disease?), place (where it
occurs), and time (how is it changing over time?)
A determinant is... ......ANSWER......a characteristic that influences
whether or not the disease occurs. Determinants of disease can be
influenced by the individual, social surroundings, and environment.
How do we identify the cause of a disease? ......ANSWER......-Is there an
association between EXPOSURE to a risk factor or a personal
characteristic and DEVELOPMENT of disease?
-Is the association causal?
pg. 1
,2|Page
- Descriptive data is important to identifying the causes of disease.
Germ Theory of disease ......ANSWER......(1850-1900) Specific
organisms cause specific diseases. Resulted from advances in science
that allowed viruses and bacteria to be visualized, isolated, and used to
cause disease in healthy animals.
These steps were known as Koch Postulates.
One of the 10 great achievements of public health in the 20th century
was: ......ANSWER......Inclusion of seat belts in all cars
Epidemiologists are interested in learning about: ......ANSWER......-The
frequency and distribution of diseases
-The causes of disease and ways to control or cure them and
-The causal relationships between diseases
Match the epidemiologist with the work/discovery he is historically
known for: ......ANSWER......
Semmelweis ......ANSWER......Hand hygiene and prevention of
Puerperal Fever
Lind ......ANSWER......Experimental study of diet and scurvy. One of the
earliest experimental studies on treatment of scurvy among sailors..
Consumption of oranges and lemons was most effective for scurvy tx.
pg. 2
, 3|Page
Graunt ......ANSWER......Published an analysis of the Bills of Mortality-
patterns of mortality and discovered regularity of deaths and births.
Farr ......ANSWER......Combined data on births, marriages, and deaths
with census data on the population size.
Koch ......ANSWER......Developed postulates to explain the causes of
cholera and TB
Snow ......ANSWER......Believed that Cholera was caused by a "germ"
spread through contaminated water.
Shoe leather EPIDEMIOLOGY.
This historic disease theory said that disease was a result of contact
with decaying animal or vegetable matter: ......ANSWER......Zyme
Theory
Public Health ......ANSWER......PH is a multidisciplinary field whose goal
is to promote the health of populations through organized community
efforts.
Epidemiology ......ANSWER......The study of the distribution and
determinants of disease frequency in human pop's and the application
of this study to control health problems. Disease refers to a broad array
pg. 3
EPIDEMIOLOGY PHC 6001: EXAM 1 QUESTIONS
WITH 100% CORRECT ANSWERS LATEST UPDATE
2026
Chapter 1 ......ANSWER......PUBLIC HEALTH AND EPIDEMIOLOGY
Disease Frequency ......ANSWER......count cases, records. It quantifies
how often a disease arises in a population. Its calculation involves
establishing the disease definition, counting cases (numerator), and
determining the size of the underlying population (denominator)
Disease Distribution ......ANSWER......who, what, when, where of the
disease. It refers to the pattern of disease according to the
characteristics of person (who is getting the disease?), place (where it
occurs), and time (how is it changing over time?)
A determinant is... ......ANSWER......a characteristic that influences
whether or not the disease occurs. Determinants of disease can be
influenced by the individual, social surroundings, and environment.
How do we identify the cause of a disease? ......ANSWER......-Is there an
association between EXPOSURE to a risk factor or a personal
characteristic and DEVELOPMENT of disease?
-Is the association causal?
pg. 1
,2|Page
- Descriptive data is important to identifying the causes of disease.
Germ Theory of disease ......ANSWER......(1850-1900) Specific
organisms cause specific diseases. Resulted from advances in science
that allowed viruses and bacteria to be visualized, isolated, and used to
cause disease in healthy animals.
These steps were known as Koch Postulates.
One of the 10 great achievements of public health in the 20th century
was: ......ANSWER......Inclusion of seat belts in all cars
Epidemiologists are interested in learning about: ......ANSWER......-The
frequency and distribution of diseases
-The causes of disease and ways to control or cure them and
-The causal relationships between diseases
Match the epidemiologist with the work/discovery he is historically
known for: ......ANSWER......
Semmelweis ......ANSWER......Hand hygiene and prevention of
Puerperal Fever
Lind ......ANSWER......Experimental study of diet and scurvy. One of the
earliest experimental studies on treatment of scurvy among sailors..
Consumption of oranges and lemons was most effective for scurvy tx.
pg. 2
, 3|Page
Graunt ......ANSWER......Published an analysis of the Bills of Mortality-
patterns of mortality and discovered regularity of deaths and births.
Farr ......ANSWER......Combined data on births, marriages, and deaths
with census data on the population size.
Koch ......ANSWER......Developed postulates to explain the causes of
cholera and TB
Snow ......ANSWER......Believed that Cholera was caused by a "germ"
spread through contaminated water.
Shoe leather EPIDEMIOLOGY.
This historic disease theory said that disease was a result of contact
with decaying animal or vegetable matter: ......ANSWER......Zyme
Theory
Public Health ......ANSWER......PH is a multidisciplinary field whose goal
is to promote the health of populations through organized community
efforts.
Epidemiology ......ANSWER......The study of the distribution and
determinants of disease frequency in human pop's and the application
of this study to control health problems. Disease refers to a broad array
pg. 3
