A Cluster of Cases of Legionellosis Have Occurred in Your

question 70

Multiple Choice

A cluster of cases of legionellosis have occurred in your neighborhood. People with the illness have cough, fever, shortness of breath, chest pain and sometimes diarrhea. The illness is caused by the bacterium Legionella pneumophila, a facultative intracellular parasite that survives in certain ameba. The organism has an absolute requirement for L-cysteine.
-Diagnosis of legionellosis depends partly on culture of the causative agent from medical samples. Typically, the organism is grown on buffered charcoal yeast extract (BCYE) agar. What essential component must this medium have to ensure growth of L. pneumophila?

• A) red blood cells
• B) chlorine
• C) NaCl
• D) cysteine
• E) All of the answer choices are correct.

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Definitions:

Privity

A relationship between parties that is sufficiently close to validate contracts or grant rights or obligations.

Indirectly Benefit

To gain advantage or profit in a secondary way from an action or event not directly involved with one's efforts.

Incidental Beneficiary

A third party who incidentally benefits from a contract but whose benefit was not the reason the contract was formed. An incidental beneficiary has no rights in a contract and cannot sue to have the contract enforced.

Intended Beneficiary

A third party for whose benefit a contract is formed; an intended beneficiary can sue the promisor if such a contract is breached.