There Was a Food Poisoning Outbreak on April 1,2018,at the City

question 1

Multiple Choice

There was a food poisoning outbreak on April 1,2018,at the City Z Food Safety Conference.There were 1,000 people registered for the conference with luncheon,100 volunteers to host attendees,and 50 people who served the luncheon during the conference.Except for 50 people who served the food,all of the participants and volunteers ate the food from the luncheon at the conference on April 1,2018.After an initial outbreak of food poisoning is reported,an epidemiologist sends surveys to all people at risk to investigate the cause.However,only 900 people among those at risk answer the survey.After analysis of 900 survey results,the epidemiologist concludes that the most suspected foods in the outbreak are pepperoni pizza and meatball spaghetti.What is the overall attack rate for those who ate meatball spaghetti? Use the following table to answer the question. Summary of Survey Responses
$$\begin{array} { | l | l | l | } \hline & \begin{array} { l } \text { Number of people who } \\\text { developed the case definition } \\\text { symptoms }\end{array} & \begin{array} { l } \text { Number of people who ate the } \\\text { food }\end{array} \\\hline \text { Pepperoni pizza only } & 113 & 275 \\\hline \text { Meatball spaghetti only } & 62 & 375 \\\hline \begin{array} { l } \text { Both pepperoni pizza and } \\\text { meatball spaghetti }\end{array} & 57 & 150 \\\hline \begin{array} { l } \text { Neither of pepperoni pizza or } \\\text { meatball spaghetti }\end{array} & 10 & 100 \\\hline\end{array}$$

• A) 41%
• B) 38%
• C) 27%
• D) 40%
• E) 23%

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Definitions:

Pneumatic ABS

An Anti-lock Braking System (ABS) using pressurized air to prevent wheel lockup during braking, typically in heavy vehicles.

FMVSS 121 Redundancy

Specific redundancy requirements set by Federal Motor Vehicle Safety Standard 121, concerning air brake systems in heavy-duty vehicles to ensure safety even in case of a failure.

100-tooth ABS Reluctor

A ring with 100 teeth used in an Anti-lock Braking System (ABS) to provide the ABS sensor with wheel speed information.

Tire Rotation

The practice of moving the tires of a vehicle from one position to another to ensure even tire wear.