CDC Self Assessment Quiz 1

In the definition of epidemiology, "distribution" refers to:

In the definition of epidemiology, "determinants" generally includes:

Epidemiology, as defined in this lesson, would include which of the following activities?

John Snow's investigation of cholera is considered a model for epidemiologic field investigations because it included a:

Public health surveillance includes which of the following activities:

The hallmark feature of an analytic epidemiologic study is:

A number of passengers on a cruise ship from Puerto Rico to the Panama Canal have recently developed a GI illness compatible with Norovirus. Testing for Noro is not readily available in any nearby island, and the test takes several days even where available. Assuming your are the dude called on to board the ship and investigate this possible outbreak, your case definition should include, at minimum...

A "specific" case definition is one that:

Comparing numbers and rates of illness in a community, rates are preferred for:

For the cruise ship scenario described in question 7, how would you display the time course of the outbreak?

For the cruise ship scenario, if you suspected that the norovius may have been transmitted by ice made or served aboard the ship, how might you display "place"?

(still don't understand how they decided on this set of answers)

Which variables might you include in characterizing the outbreak from the cruise ship by "person"?

When analyzing surveillance data by age, which of the following age groups is preferred?

A study in which children are randomly assigned to receive either a newly formulated vaccine or the currently available vaccine, and are followed to monitory for side effects and effectiveness of each vaccine, is an example of which type of study?

The Iowa Women's Health Study, in which researchers enrolled 41,837 women in 1986 and collected exposure and lifestyle information to assess the relationship between these factors and subsequent occurrence of cancer, is an example of which types of study?

British investigators conducted a study to compare MMR vaccine history among 1,294 chidren with pervasive development disorder (e.g. Autism & Asperger's), and 4,469 children without such disorders. This is an example of which type(s) of study?

(They found no association)

A cohort study differs from a case-control study in that:

A key feature of a cross-sectional study is that:
(3 correct answers)

The epidemiologic triad of disease causation refers to:

For each of the following, identify the appropriate letter from the time line in Figure 1.27 representing the natural history disease.

ONSET OF DISEASE

For each of the following, identify the appropriate latter from the time line in Figure 1.27 representing the natural history disease.

USUAL TIME OF DIAGNOSIS

For each of the following, identify the appropriate letter from the time line in Figure 1.27 representing the natural history disease.

EXPOSURE

A reservior of an infectious agent can be:

Indirect transmission includes all of the following:

Which of these control measures are generally not used?

USUALLY 40-50 CASES PER WEEK, LAST WEEK HAD 48 CASES

FEWER THAN 10 CASES PER YEAR, LAST WEEK HAD 1 CASE

USUALLY NO MORE THAN 2-4 CASES PER WEEK, LAST WEEK HAD 13 CASES

A propagated epidemic is usually the result of what type of exposure?