Outbreak Investigation: Chapter 12 Epidemiology Final Exam And 100% Solved Solutions.
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Course
Surveillance and Outbreak Investigation
Institution
Surveillance And Outbreak Investigation
What federal agency in the United States is primarily responsible for investigating outbreaks of national importance? - Answer The Centers for Disease Control and Prevention (CDC)
The x axis of an epidemic curve represents: (a) the number of cases; (b) time since exposure or some other type o...
Outbreak Investigation: Chapter 12
Epidemiology Final Exam And 100%
Solved Solutions.
What federal agency in the United States is primarily responsible for investigating outbreaks of national
importance? - Answer The Centers for Disease Control and Prevention (CDC)
The x axis of an epidemic curve represents: (a) the number of cases; (b) time since exposure or some
other type of time line; (c) the percentage of cases; (d) responses a and c; or (e) all of the above. -
Answer b
The y axis of an epidemic curve represents: (a) the number of cases; (b) time since exposure; (c) the
percentage of cases; (d) responses a and c; or (e) all of the above. - Answer d
A notable exception to the observed pattern of occurrence is a(n):(a)outlier; (b) case; (c) control; and (d)
exposure. - Answer a
How do outbreaks come to the attention of public health authorities - Answer Outbreaks are detected
by surveillance systems or concerned citizens and health professionals.
What is an epidemiological surveillance system? - Answer Surveillance systems are organizations and
structures set up to routinely collect outcome-specific health data.
List four different phenomena that could cause an increase in the number of cases reported to a system
without there being a true increase in the rate of occurrence. - Answer A change in the reporting
procedure or case definition; an increase in population size; diagnostic suspicion bias; publicity bias.
The decision whether or not to investigate an outbreak depends on many factors. List several. - Answer
(a) The ability to confirm a greater than expected number of cases truly occurred, (b) the scale and
severity of the outbreak, (c) whether a identifiable subgroup is disproportionally affected, (d) the
potential for spread, (e) political and public relations considerations, (f) availability of resources.
, Descriptive epidemiology traditionally describes the occurrence of a condition according to three types
of ''epidemiologic variables''. Name these. - Answer Person, place, and time factors.
One of the first things to do when investigating an outbreak is to confirm the ___________ of
prospective cases. - Answer Diagnoses
The observed number of cases is compared with the ___________ number to confirm the occurrence of
an epidemic. - Answer Expected
What does an epidemiologist mean when they refer to a ''case definition''? - Answer A case definition
is the standard criteria used to decide whether someone has or does not have the disease in question.
True or false? John Snow recognized that the outbreak of cholera in the Golden Square area that was
associated with the Broad Street pump might have been burning itself out before the pump handle was
removed. - Answer T
Define ''incubation period.'' - Answer The incubation period is the time interval between exposure to
the agent and the
appearance of first signs or symptoms.
What is a hypothesis? - Answer A hypothesis is a tentative explanation that accounts for a set of facts
that can be tested by further investigation.
True or false? Hypothesis development requires an understanding of the disease process and population
at risk - Answer T
When communicating the findings of an outbreak investigation, we address the 'who, what, where,
when, ___________, and ______________ of what we discovered. - Answer How, why
Initial detection of outbreak - Answer Epidemiological surveillance systems, Notification from PH depts,
citizens, HC providers
Why initiate investigations - Answer 1) Epidemic
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