Why did investigators use a different case definition

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Reference no: EM133370257

Questions:

A. Interpret the descriptive epidemiology of the typhoid fever cases. Are signs and symptoms among patients consistent with typhoid fever? Are patients clustered by selected demographic characteristics? What is the course of the epidemic and does it appear to be over?

B. Using information available to you at this point, state your leading hypotheses on the mode of transmission, the source of the outbreak, and the period of interest.

C. Why did investigators use a different case definition for the case-control study than for performing the descriptive epidemiology? If cases were culture-confirmed, why did investigators include symptoms of infection in the case definition? Why did investigators include only the first case in a household in the study?

D. Interpret the matched odds ratios for exposures in the case-control study.

E. Can you postulate why eating apples and butter were protective against typhoid fever? (Does an apple a day really keep the doctor [typhoid fever] away?)

Reference no: EM133370257

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