1|Page
Final Exam Practice: PUBH 401 Latest Update Exam | Questions and
Verified Answers | 100% Correct | Grade A +
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. What is the
probability of an individual not getting COVID-19, given that
he/she was not exposed? - ANSWER 0.83
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. What is the
number of nonexposed cases of the COVID-19 virus? - ANSWER
5 million
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. What
percentage of the population were exposed to the COVID-19
disease? - ANSWER 7%
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. How many
people were unexposed to the COVID-19 virus? - ANSWER 30
million
,2|Page
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. What is the
percentage of cases of the COVID-19 virus infection reported? -
ANSWER 25%
How many individuals can be considered susceptible to the
COVID-19 disease? - ANSWER 25 million
A number of passengers on a cruise ship from New York to
California have recently developed some illness symptoms
compatible with a type of coronavirus, COVID-19. Testing for
this coronavirus is not readily available in any nearby island, and
the test takes several days even where available. Assuming you
are the epidemiologist called on to board the ship and
investigate this possible outbreak, how would you display the
time course of the outbreak? - ANSWER Epidemic curve
One type of model considered for epidemiologic field
investigations is John Snow's investigation of cholera because it
included a: (Choose all that apply) - ANSWER - biologically
plausible
-recommendation for public health
,3|Page
-comparison of a health outcome among exposed and
unexposed groups
What is the most accurate definition of the incubation period
(of an infectious disease)? - ANSWER the interval from receipt
of infection to the time of onset of clinical illness (the onset of
recognizable symptoms)
A cross-sectional study has the following feature(s): [Choose all
that apply]
Group of answer choices - ANSWER - It is more useful for
descriptive epidemiology than it is for analytic epidemiology
-It is synonymous with survey
-It usually provides information on prevalence rather than
incidence
The first life table in epidemiology was developed by - ANSWER
John Graunt
To Compare numbers and rates of illness in a community, rates:
- ANSWER Estimate the subgroups at highest risk
, 4|Page
What type of exposure usually results in propagated epidemic?
- ANSWER Point source
Person-to-person
John Snow's work of comparing water source from infected and
uninfected persons represents a case/control study. Whiles his
work on comparing cholera rates by neighborhood represents -
ANSWER Ecological Study
How different is cohort study from a case-control? - ANSWER
Subjects are enrolled or categorized on the basis of their
exposure status in a cohort study but not in a case-control study
Epidemiology study the distribution of disease and
determinants of health-related states or events. Whereas,
Clinical Epidemiology is the science of making ........................
about individual patients by counting clinical events in similar
patients. - ANSWER prediction
Final Exam Practice: PUBH 401 Latest Update Exam | Questions and
Verified Answers | 100% Correct | Grade A +
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. What is the
probability of an individual not getting COVID-19, given that
he/she was not exposed? - ANSWER 0.83
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. What is the
number of nonexposed cases of the COVID-19 virus? - ANSWER
5 million
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. What
percentage of the population were exposed to the COVID-19
disease? - ANSWER 7%
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. How many
people were unexposed to the COVID-19 virus? - ANSWER 30
million
,2|Page
You were tasked as an epidemiologist to collect this data and
provide information to the public and institutions. What is the
percentage of cases of the COVID-19 virus infection reported? -
ANSWER 25%
How many individuals can be considered susceptible to the
COVID-19 disease? - ANSWER 25 million
A number of passengers on a cruise ship from New York to
California have recently developed some illness symptoms
compatible with a type of coronavirus, COVID-19. Testing for
this coronavirus is not readily available in any nearby island, and
the test takes several days even where available. Assuming you
are the epidemiologist called on to board the ship and
investigate this possible outbreak, how would you display the
time course of the outbreak? - ANSWER Epidemic curve
One type of model considered for epidemiologic field
investigations is John Snow's investigation of cholera because it
included a: (Choose all that apply) - ANSWER - biologically
plausible
-recommendation for public health
,3|Page
-comparison of a health outcome among exposed and
unexposed groups
What is the most accurate definition of the incubation period
(of an infectious disease)? - ANSWER the interval from receipt
of infection to the time of onset of clinical illness (the onset of
recognizable symptoms)
A cross-sectional study has the following feature(s): [Choose all
that apply]
Group of answer choices - ANSWER - It is more useful for
descriptive epidemiology than it is for analytic epidemiology
-It is synonymous with survey
-It usually provides information on prevalence rather than
incidence
The first life table in epidemiology was developed by - ANSWER
John Graunt
To Compare numbers and rates of illness in a community, rates:
- ANSWER Estimate the subgroups at highest risk
, 4|Page
What type of exposure usually results in propagated epidemic?
- ANSWER Point source
Person-to-person
John Snow's work of comparing water source from infected and
uninfected persons represents a case/control study. Whiles his
work on comparing cholera rates by neighborhood represents -
ANSWER Ecological Study
How different is cohort study from a case-control? - ANSWER
Subjects are enrolled or categorized on the basis of their
exposure status in a cohort study but not in a case-control study
Epidemiology study the distribution of disease and
determinants of health-related states or events. Whereas,
Clinical Epidemiology is the science of making ........................
about individual patients by counting clinical events in similar
patients. - ANSWER prediction
