Ask Question, Ask an Expert


Ask Biology Expert

A Case of Food Poisoning


An outbreak of food poisoning occurred the last week of June, affecting twothirds of the 1700 persons who attended a dinner in Port Allen, Louisiana. A problemnaire to obtain information concerning the illness was administered to 122 persons. Of this sample, 82 (67.2%) reported illness. Physicians treated 32 patients (26.2%); 9 (7.4%) required hospitalization. Dinner was at 6 P.M. Sunday. 
Laboratory analysis yielded positive cultures of the etiological agents from the leftover shrimp, potatoes, corn, and hogshead cheese, and from 7 of 15 stool samples from patients. The person who collected the food stored all of it in one container. 
Potatoes were purchased from a farmer. They had been stored in a root cellar and were transported loose in a pickup truck. The morning of the dinner the potatoes were washed, peeled, and boiled until tender. The pots were covered with aluminum foil and transported unrefrigerated 50 miles to the dinner. 
Corn was purchased from a produce market. The night before the dinner, the corn was shucked and kept in the wooden boxes in which it had been purchased. The day of the dinner, the corn was boiled. For transport, it was wrapped in aluminum foil. 
Hogshead cheese was purchased the morning of the dinner along with the salt meat. The headcheese and salt meat were kept refrigerated by the delicatessen. After purchase, they were stored unrefrigerated until dinner. (Read labels in the deli section of your grocery store to ascertain the ingredients in headcheese.) 
Raw shrimp was purchased at one location and shipped to a second location in standard wooden seafood boxes. It was boiled on the morning of the dinner and placed back into the boxes. After being covered with aluminum foil, it was transported 40 miles in an unrefrigerated truck to the dinner. An inspection of the wholesale seafood establishment was undertaken six days later. The investigation revealed that the shrimp had been boiled in 300lb. batches in the following manner: A batch was placed in a container until the water came to a rolling boil; then the gas was turned off, and the shrimp kept in the hot water for 15 minutes. 


1.Identify and discuss the etiological agent of this outbreak.
2.Was it food infection or intoxication? Discuss the supporting evidence for this conclusion.
3.Which food item was contaminated and how did the food get contaminated?
4.Briefly describe why you eliminated the other major causes of food poisoning.
5.Discuss the branch of microbiology introduced in this case and identify the type represented here.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M998461

Have any Question? 

Related Questions in Biology

With which archaic human species did some of the ancestors

With which archaic human species did some of the ancestors of modern Europeans interbreed during the past 100,000 years?

1 which type of vessels arteries or veins has more muscle

1) Which type of vessels, arteries, or veins, has more muscle fibers? What is the functional significance of this? 2) In general, we have no conscious control over smooth muscle or cardiac muscle function, whereas we can ...

1 identify five different mammalian species2 describe what

1. Identify five different mammalian species. 2. Describe what tissues regenerate. 3. Discuss if you believe that each of these mammals use the same or a different mechanism to regenerate tissues?

How many neutrons does element x have if its atomic number

How many neutrons does element x have if it's atomic number is 42 and it's mass number is 154?

Answer the following questionwhat is the domain and kingdom

Answer the following question: What is the domain and kingdom for an organism that has a nucleus, is not motile, and does not perform photosynthesis? What is taxonomy? What role does this serve? How does taxonomy assist ...

What is the definition for sporadic in What is the definition for sporadic in

What is the definition for sporadic in epidemiology?

Reproductive systemdefine primary sex organs secondary sex

Reproductive System Define primary sex organs, secondary sex organs, and secondary sex characteristics Describe the accessory glands and other secondary sex organs of the male/female, and state their functions Explain th ...

Of the four chambers of the human heart which has the

Of the four chambers of the human heart, which has the thickest walls, and why? Why can you not catch the same cold twice, but a new cold will make you sick for a week or two? What is the key step in spermatogenesis that ...

Lake stratificationhow does heat affect the tripariat

Lake Stratification: How does heat affect the tripariat thermal structure of a lake (epiliminion, thermocline and hypolimnion) during the summer and does the application of wind change this?

1 starting with the umbilical vein listchart the general

1) Starting with the umbilical vein, list/chart the general flow of blood through the fetus of a pig. 2) What special features of the lung make it a useful organ for gas exchange?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen