Once the implicated the food. The place was the investigation centered on table

Question

Once the implicated the food. The place was the investigation centered on table includes the food items served in on 28 Gastroenteritis outbreak Findings by Person Did Not Eat the Food item Ate the Food Item Attack Relative No, Rate ple No. Ill burritos 61.2 297 13 60 98 Tossed 33 9 6.5% 243 139 potato 52 88 Fruit cream 175 19 Important note: None of the kitchen personnel were ill. The names of the kitchen personnel and their participation in the food preparation are as follows: Manuel prepared the beef burritos and the potatoes; John prepared the salad and the fruit sally served all dishes except the cream, and Jane prepared the cheeseburgers and served the ice cream. The ice cream was a commercial brand and was bought at a nearby supermarket. Complete the table above. Please calculate the attack rates (noted as a percentage by food item to determine the item that was probably contaminated. Compare attack rates (AR) for those who ate the food item with attack rates (AR) for those who did not eat the food item by using relative risk (RR). For example, RR AR in those who ate the food IAR in those who did not eat the food. Round your answers to the hundredths (i.e., 2.23 vs. 2.2). Please remember that relative risk is not a the percentage, so only use to denote ARs. (Fill in the AR and RR columns in table above.)

Explanation / Answer

Answer:

Relative risk or risk ratio (RR) is the ratio of the probability of an event occurring (for example, developing a disease) in an exposed group to the probability of the event occurring in a comparison, non-exposed group.

Here for Beef burritos and cheese burger, where relative risk were 1 means, both those people who had the food and who did not were under same risk.
In case of baked potato,risk ratio to be less than 1; this would suggest that the exposure being considered is associated with a reduction in risk.
Whereas in case of Tossed salad, fruit cocktail, Ice cream had relative risk more than 1 showing that exposed group(who ate the food) are in higher risk of getting gastroenteritis.
So form this study we can interpret there was some contamination in tossed salad and fruit cocktail where the attack rates are also very high, 61.2% and 59.1% respectively and were responsible for the disease outbreak.

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