An Unusual Increase in a Disease Should Be Investigated

question 24

Multiple Choice

An unusual increase in a disease should be investigated. Epidemiologic clues that may signal a bioterrorism attack include:

• A) A large number of cases of the flu
• B) A case of cholera following a trip to India by a local politician
• C) Dengue fever in a group of students who just returned from a mission trip
• D) Unusual illness in a population

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Definitions:

Substitution Effect

The change in consumption patterns due to changes in the relative prices of goods, leading consumers to substitute more expensive items with cheaper alternatives.

Giffen Good

A product that experiences an increase in demand as its price increases, contrary to the law of demand, typically because it is a staple whose cheaper substitutes are not as affordable.

Inferior Good

A type of good for which demand decreases as the income of the consumer increases, contrary to normal goods.

Normal Good

A good for which demand increases as the income of consumers increases and vice versa, all else being constant.