Because of the Complexity of the Schistosoma Life Cycle, There

question 34

Multiple Choice

Because of the complexity of the Schistosoma life cycle, there are several parts of the cycle that could be disrupted to halt the spread of the disease. Which of the following proposals is not likely to succeed in decreasing the prevalence of schistosomiasis?

• A) Monitor water bodies to detect the presence of infectious miracidia and enforce no bathing rules when they are present.
• B) Install sanitary sewage treatment facilities to prevent the dispersal of eggs present in urine and feces.
• C) Apply chemical molluscicides (chemicals targeted to molluscs like snails) to bodies of fresh water.
• D) Identify a surface protein on Schistosoma miracidia that the immune system can recognize and create a vaccine using that antigen.

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Definitions:

Profit

The financial gain derived from a business activity after subtracting all expenses, taxes, and costs.

Manufacturing Overhead

Costs, other than direct materials and direct labor costs, that are incurred in the manufacturing process.

Direct Labor Hours

The time spent by workers directly involved in the production process of goods or services, often used to allocate labor costs to products.

Overapplied

A situation in cost accounting when the allocated or applied costs exceed the actual costs incurred.