A Cluster of Cases of Legionellosis Have Occurred in Your

question 78

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.
-L. pneumophila is widespread and is found in various water sources, including hot tubs, water cooling towers, swimming pools, grocery store misters, and shower water. Select the False statement  regarding the organism, given this information.

• A) It survives in the presence of chlorine.
• B) It is a mesophile.
• C) It is an obligate anaerobe.
• D) It can survive in water pipes.
• E) It is a mesophile AND it can survive the presence of chlorine.

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Definitions:

Consumer Surplus

The difference between the total amount that consumers are willing and able to pay for a good or service and the total amount they actually do pay.

Monopoly

A market structure characterized by a single seller, selling a unique product in the market with no close substitutes, leading to a lack of competition.

Net Social Gain

The total benefit to society after subtracting the costs associated with an economic activity or policy.

Consumer Surplus

The distinction between what consumers are inclined and financially able to pay for a service or good and the actual payment made.