Which of the Following Is an Example of Herd Immunity

question 10

Multiple Choice

Which of the following is an example of herd immunity?

• A) Brucellosis is no longer found in farm animals in the United States.
• B) Federal law requires that all cattle not immune to anthrax be destroyed.
• C) If 70% of the population is immunized against polio, the disease will be essentially absent from the population.
• D) All farm animals used for food must be immunized against all the common agents of disease that infect humans.

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Definitions:

Negative Externalities

Costs that are suffered by a third party as a result of an economic transaction or activity, for which they are not compensated.

Tobacco Industry

The sector of the economy involved in the manufacture, marketing, and sale of tobacco and related products.

Corrective Tax

A tax designed to encourage or discourage certain behaviors to correct for the effects of externalities.

Socially Optimal

A state of resource allocation that is most beneficial for society as a whole.