1. Do you think these cases of gastrointestinal illness represent an outbreak in the community? Why or why not? (1 point)
2. How is Hepatitis A transmitted? On what sources of infection should public health
officials focus? (2 points)
3. What existing sources of information might help determine if others in the community
have Hepatitis A? (2 pts)
4. a. Interpret the descriptive epidemiology of the outbreak including the epidemic curve
(Figure 1) (3 points)
b. Were symptoms among patients consistent with Hepatitis A?
c. What was the likely course of the outbreak and did it appear to be over?
5. What studies or investigations might you undertake to confirm the hypothesis that contaminated food was the source of the outbreak? (3 points)
6. What will be your sampling approach for the survey of potential subjects? Justify your answer. (2 points)
7. How would you collect information from selected households for the survey? (2 points)
8. If 20% of persons not directly exposed to the contaminated source became ill, and if the contaminated food supply was the source of the outbreak, what explanations exist for these persons becoming ill? (2 points)
9. What will be your case definition in this scenario? (2 points)
10. Write the Null and Alternative hypothesis for this case (2 points)
11. From figure 2, calculate the Odd Ratio (OR) and explain what it represents (2 points)
12. Name some of the factors that could lead to an increase in the reported number of cases. (2 points).
13. Contaminated food in this scenario is what type of variable? (1 pt)
14. Looking at figure 1, what type of graph is this? (1 pt)
15. What role does inferential statistics play in this scenario? (2 pts)
16. Total number of the people who ate at the restaurant is______________variable. (1 pt)
17. Graphs such as figure 1 help researchers to visualize data, what value will descriptive statistics add that the graph may not provide? (2 pts)
18. Explain briefly how leadership might create a work environment that promotes well-being, personal health, and self-care, and reflect how this would mitigate work -related hazards such as food poisoning outbreak. (2 pts)
19. Offer some population-based interventions that might be used to prevent foodborne outbreaks. (3 points).
20. Describe how the use of data would lead to the reduction of foodborne outbreaks with regards to quick identification of the site and source of illness. (3 pts)