PUBH 401 Final Exam Practice with all Correct & 100%
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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? ✔Correct 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? ✔Correct 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? ✔Correct
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? ✔Correct Answer-30
million
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? ✔Correct
Answer-25%
How many individuals can be considered susceptible to the COVID-19 disease? ✔Correct 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? ✔Correct 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) ✔Correct Answer-- biologically plausible
-recommendation for public health
-comparison of a health outcome among exposed and unexposed groups
What is the most accurate definition of the incubation period (of an infectious disease)? ✔Correct
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 ✔Correct 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 ✔Correct Answer-John Graunt
To Compare numbers and rates of illness in a community, rates: ✔Correct Answer-Estimate the
subgroups at highest risk
What type of exposure usually results in propagated epidemic? ✔Correct 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
✔Correct Answer-Ecological Study
How different is cohort study from a case-control? ✔Correct 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. ✔Correct Answer-prediction
What is the name of the occurrence of a clearly higher than expected number of cases of a disease
within a limited geographical region? ✔Correct Answer-Epidemic
Koch's first postulate states that a specific organism must always be observed in association with the
disease. This means asymptomatic individuals are not covered under this postulate.
Group of answer choices ✔Correct Answer-True
To analyze disease surveillance data by age, which of the following age groups is preferred?
✔Correct Answer-Depends on the disease
The above figure measures the severity of three different diseases. Which disease is most severe?
✔Correct Answer-measles virus
Which letter from the timeline in the Figure representing the natural history of disease denotes the
"Exposure" of a disease? ✔Correct Answer-A
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, your
case definition should include, at a minimum: ✔Correct Answer-Clinical criteria, plus specification
of time, place and person
Which term most accurately describes the following definition? "The occurrence in a community or
region of cases of an illness, specific health-related behavior, or other health-related events clearly in
excess of normal expectancy." [Porta M, ed. A Dictionary of Epidemiology. New York: Oxford
University Press; 2014.] ✔Correct Answer-Epidemic
Part of John Snow's work of comparing disease rates in exposed and unexposed persons (people who
drew water from the Broad Street pump) represent what type of public health studies? ✔Correct
Answer-cohort studies
,Generally, "determinants" in the definition of epidemiology can also be referred to as: (Choose all
that apply) ✔Correct Answer-risk factors
attributors
contributors
agents
Both Epidemiology and Clinical Epidemiology aims to solve public health problems ✔Correct
Answer-true
COVID-19 pandemic outbreak is an example of ✔Correct Answer-continuous source outbreak
............................. is the study of disease in a population with goals of determining the frequency
and distribution of the disease as well as risk factors for the disease. ✔Correct Answer-
epidemiology
A clear series of steps known as the Evidence-Based Public Health Cycle can provide an excellent
paradigm to guide health practitioners through the following process: [Choose all that apply]
Group of answer choices ✔Correct Answer-knowing the right question to ask
knowing the best place to look
In disease prevention and control, control measures are generally directed at which of the following?
[Choose all that apply] ✔Correct Answer-eliminating the reservoir
eliminating the vector
interrupting mode of transmission
reducing host susceptibility
A Common vehicle exposure mode of infectious disease transmission include all except, ✔Correct
Answer-person to person exposure
John Sow has been largely regarded as the father of demography. ✔Correct Answer-false
Which of the following activities describes Public health surveillance? (Choose all that apply)
✔Correct Answer-Soliciting case reports of persons with symptoms compatible with SARs from local
hospitals
Creating graphs of the number of dog bites by week and neighborhood
Writing a report on trends in seat belt use to share with the state legislature
Which disease in the figure has the same range of duration of incubation as the period when it is
most common? ✔Correct Answer-enterovirus
An epidemiological triad of disease causation refers to:
Group of answer choices ✔Correct Answer-agent, host, environment
The purpose of epidemiology include: ✔Correct Answer-identify the etiology or cause of disease
determine the extent of disease
Clinical Epidemiology investigates the risk factors associated with a particular disease outcome.
✔Correct Answer-false
To find evidence to public health problem the Evidence-Based Public Health Model allow for
investigation through: ✔Correct Answer-asking
, acquiring
appraising
A reservoir of an infectious agent in the Epidemiological Triad Model can be ✔Correct Answer-An
asymptomatic human
A symptomatic human
An animal
The environment
Malaria is a parasitic disease transmitted by the Anopheles mosquito bite. This mode of transmission
is called ✔Correct Answer-vector
In defining epidemiology, "distribution" refers to: (Choose all that apply) ✔Correct Answer-who
where
when
If the hypothesized effect of exposure decreases the risk or presence of disease, the exposure can be
said to be ✔Correct Answer-beneficial
The usual occurrence of a given disease within a particular area is referred to as ✔Correct Answer-
endemic
What stage of the Evidence-Based Public Health Model requires the use of the PICO formula?
✔Correct Answer-ask
A study in which participants are randomly assigned to receive either a newly formulated vaccine,
and are followed to monitor for side effects and effectiveness of each vaccine, is an example of which
type of study? ✔Correct Answer-clinical trial
experimental
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. If you
suspected that the Coronavirus may have been transmitted by ice food made or served aboard ship,
how might you display "place"? ✔Correct Answer-Spot map by assigned dinner seating location
Spot map by cabin
Shaded map of United States by state of residence
A specific case definition of a disease is one that: ✔Correct Answer-is likely to include only (or
mostly) true cases
May exclude mild cases
What purpose of public health epidemiological studies measure and tests the association between a
hypothesized risk factor and disease? ✔Correct Answer-Analytic
Indirect transmission of an infectious disease may include which of the following? ✔Correct
Answer-Mosquito-borne
Foodborne
Doorknobs or toilet seats
Verified Answers |Latest Version |Already Graded A+
(Just Released)
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? ✔Correct 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? ✔Correct 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? ✔Correct
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? ✔Correct Answer-30
million
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? ✔Correct
Answer-25%
How many individuals can be considered susceptible to the COVID-19 disease? ✔Correct 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? ✔Correct 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) ✔Correct Answer-- biologically plausible
-recommendation for public health
-comparison of a health outcome among exposed and unexposed groups
What is the most accurate definition of the incubation period (of an infectious disease)? ✔Correct
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 ✔Correct 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 ✔Correct Answer-John Graunt
To Compare numbers and rates of illness in a community, rates: ✔Correct Answer-Estimate the
subgroups at highest risk
What type of exposure usually results in propagated epidemic? ✔Correct 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
✔Correct Answer-Ecological Study
How different is cohort study from a case-control? ✔Correct 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. ✔Correct Answer-prediction
What is the name of the occurrence of a clearly higher than expected number of cases of a disease
within a limited geographical region? ✔Correct Answer-Epidemic
Koch's first postulate states that a specific organism must always be observed in association with the
disease. This means asymptomatic individuals are not covered under this postulate.
Group of answer choices ✔Correct Answer-True
To analyze disease surveillance data by age, which of the following age groups is preferred?
✔Correct Answer-Depends on the disease
The above figure measures the severity of three different diseases. Which disease is most severe?
✔Correct Answer-measles virus
Which letter from the timeline in the Figure representing the natural history of disease denotes the
"Exposure" of a disease? ✔Correct Answer-A
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, your
case definition should include, at a minimum: ✔Correct Answer-Clinical criteria, plus specification
of time, place and person
Which term most accurately describes the following definition? "The occurrence in a community or
region of cases of an illness, specific health-related behavior, or other health-related events clearly in
excess of normal expectancy." [Porta M, ed. A Dictionary of Epidemiology. New York: Oxford
University Press; 2014.] ✔Correct Answer-Epidemic
Part of John Snow's work of comparing disease rates in exposed and unexposed persons (people who
drew water from the Broad Street pump) represent what type of public health studies? ✔Correct
Answer-cohort studies
,Generally, "determinants" in the definition of epidemiology can also be referred to as: (Choose all
that apply) ✔Correct Answer-risk factors
attributors
contributors
agents
Both Epidemiology and Clinical Epidemiology aims to solve public health problems ✔Correct
Answer-true
COVID-19 pandemic outbreak is an example of ✔Correct Answer-continuous source outbreak
............................. is the study of disease in a population with goals of determining the frequency
and distribution of the disease as well as risk factors for the disease. ✔Correct Answer-
epidemiology
A clear series of steps known as the Evidence-Based Public Health Cycle can provide an excellent
paradigm to guide health practitioners through the following process: [Choose all that apply]
Group of answer choices ✔Correct Answer-knowing the right question to ask
knowing the best place to look
In disease prevention and control, control measures are generally directed at which of the following?
[Choose all that apply] ✔Correct Answer-eliminating the reservoir
eliminating the vector
interrupting mode of transmission
reducing host susceptibility
A Common vehicle exposure mode of infectious disease transmission include all except, ✔Correct
Answer-person to person exposure
John Sow has been largely regarded as the father of demography. ✔Correct Answer-false
Which of the following activities describes Public health surveillance? (Choose all that apply)
✔Correct Answer-Soliciting case reports of persons with symptoms compatible with SARs from local
hospitals
Creating graphs of the number of dog bites by week and neighborhood
Writing a report on trends in seat belt use to share with the state legislature
Which disease in the figure has the same range of duration of incubation as the period when it is
most common? ✔Correct Answer-enterovirus
An epidemiological triad of disease causation refers to:
Group of answer choices ✔Correct Answer-agent, host, environment
The purpose of epidemiology include: ✔Correct Answer-identify the etiology or cause of disease
determine the extent of disease
Clinical Epidemiology investigates the risk factors associated with a particular disease outcome.
✔Correct Answer-false
To find evidence to public health problem the Evidence-Based Public Health Model allow for
investigation through: ✔Correct Answer-asking
, acquiring
appraising
A reservoir of an infectious agent in the Epidemiological Triad Model can be ✔Correct Answer-An
asymptomatic human
A symptomatic human
An animal
The environment
Malaria is a parasitic disease transmitted by the Anopheles mosquito bite. This mode of transmission
is called ✔Correct Answer-vector
In defining epidemiology, "distribution" refers to: (Choose all that apply) ✔Correct Answer-who
where
when
If the hypothesized effect of exposure decreases the risk or presence of disease, the exposure can be
said to be ✔Correct Answer-beneficial
The usual occurrence of a given disease within a particular area is referred to as ✔Correct Answer-
endemic
What stage of the Evidence-Based Public Health Model requires the use of the PICO formula?
✔Correct Answer-ask
A study in which participants are randomly assigned to receive either a newly formulated vaccine,
and are followed to monitor for side effects and effectiveness of each vaccine, is an example of which
type of study? ✔Correct Answer-clinical trial
experimental
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. If you
suspected that the Coronavirus may have been transmitted by ice food made or served aboard ship,
how might you display "place"? ✔Correct Answer-Spot map by assigned dinner seating location
Spot map by cabin
Shaded map of United States by state of residence
A specific case definition of a disease is one that: ✔Correct Answer-is likely to include only (or
mostly) true cases
May exclude mild cases
What purpose of public health epidemiological studies measure and tests the association between a
hypothesized risk factor and disease? ✔Correct Answer-Analytic
Indirect transmission of an infectious disease may include which of the following? ✔Correct
Answer-Mosquito-borne
Foodborne
Doorknobs or toilet seats
