Escherichia Coli O157:H7 Was First Observed in Fast-Food Hamburger Meat

question 2

Multiple Choice

Escherichia coli O157:H7 was first observed in fast-food hamburger meat. More recently, it has been associated with contamination of spinach and other vegetables. How did the spread of this strain from meat to vegetables happen?

• A) It picked up genes for plant virulence.
• B) Strain O157:H7 can grow as a plant endophyte.
• C) It has become a psychrotroph and can grow in refrigerated foods.
• D) It produces toxins that can survive on plant material.
• E) This bacterial strain has lost genes needed to grow in meat.

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Definitions:

Duress

A situation where a person is forced to perform an act against their will or face threats, violence, constraints, or other action upon their person or property, which is used as a means to compel their agreement or action.

Undue Influence

A situation where an individual is able to influence another person's decisions due to a special relationship, often leading to unfair advantages.

Ratification

The adoption or affirmance by a person of a prior act that did not bind him.

Mutual Mistake

A misunderstanding between all parties of a contract regarding the basic facts or terms of the contract, which can make the agreement voidable.