Diphtheria Is Considered to Be an Upper Respiratory Tract Infection

question 27

Multiple Choice

Diphtheria is considered to be an upper respiratory tract infection. However, it can have a very high mortality rate if not caught early and treated. Predict why this is so.

• A) It makes a toxin that can be carried in blood and produce organ damage, particularly the heart.
• B) It successfully hides from the immune system of the patient.
• C) The patient cannot eat or drink and so basically starves to death.
• D) The bacterium moves from the throat to the brain, causing strokes to occur.

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Definitions:

Median Earnings

The middle value of income distribution, where half of the population earns more and half earns less.

Labor Market

The supply and demand for labor, where employers seek to hire workers, and individuals offer their work for wages.

Median Earnings

The middle value of earnings in a given demographic, geographical area, or profession, with an equal number of individuals earning more and less than this amount.

Labor Market

A marketplace where employers find workers and workers find jobs, characterized by the supply and demand for labor.