E Coli Case Study the Case Study

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coli outbreak, with no known restaurant our social event being in common with any cases. This suggests that a grocery store supplier most likely had a contaminated batch of either lettuce or alfalfa. This E. coli, was most likely transmitted by a food handler somewhere along the grocery supply chain. Produce suppliers should be targeted as the next probable source of the virus.

Question 8A

Finding controls for this study would require identifying people who were exposed to the possible sources of the contaminated produce but did not get sick. Controls must have been at risk to the exposure but did not acquire the symptoms seen in those who were identified.

Question 8B

While matching can help a study by minimizing the risk of confounding, I disagree with the studies employment of these criteria. Gender is not really specific to occurrences of E. coli and may serve to distract from more informative relationships that may be garnered from analyzing data gathered within this study.
Age is useful in that it is a predictor of many eating habits, i.e. children tend to eat what their parents buy them.

Question 9

Some methods may be helpful in identifying controls in this study that will contribute to clarifying some of the confusing aspects associated with a study of this nature. One such method would be to randomly selecting people from the counties where the E. coli was detected. This provides both an element of randomness while still focusing in on a similar geographical location. This may be difficult due to a shortage of people willing to submit to the study and a more widespread search may be necessary.

Question 10

In this case, I would limit the time period of examining exposure to possible risk factors for cases and controls for both one week prior and after the time….....

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