Cattle May Serve as a Reservoir for E

question 32

Multiple Choice

Cattle may serve as a reservoir for E.coli strain O157:H7 because this strain does not cause any disease in cattle.This strain of E.coli can cause a potentially lethal Shiga toxin-mediated hemolytic uremic syndrome (HUS) in humans.Why don't cattle develop HUS?

• A)The shiga toxin is not expressed in cattle.
• B)E)coli is unable to effectively colonize the bovine intestine.
• C)A protease in the cattle destroys the toxin.
• D)Bovine kidney cells do not have a shiga toxin receptor.
• E)They produce antibody against the shiga toxin.

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Definitions:

Discount Rate

This rate is applied within discounted cash flow analysis to determine the contemporary monetary worth of future cash movements.

Investment Required

The total amount of capital needed to undertake a project, investment, or start a business.

Net Present Value

A method used in capital budgeting to determine the profitability of an investment or project, by calculating the difference between the present value of cash inflows and outflows over a period of time.

Annual Cash Inflows

The total amount of money received by a business, project, or investment on an annual basis from its operational activities.