Microcheck 234

Many different kinds of infectious agents can produce the same symptoms and signs of respiratory disease. Emotional stress significantly increases the risk of contracting a cold, but exposure to cold temperatures probably does not. Persons suffering a cold are most likely to transmit it if symptoms are severe, and during the first few days of illness. Adenovirus infections can mimic colds, pinkeye, strep throat, and whooping cough.

■ How is an adenovirus infection treated?

■ People who staff polar ice stations where they are isolated from other human contact for long periods often do not develop colds. Is this an expected observation? Why or why not?

576 Chapter 23 Respiratory System Infections

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