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Microbiology

Critical Thinking

MicrobiologyCritical Thinking

Critical Thinking

22.

Why might an epidemiological population in a state not be the same size as the number of people in a state? Use an example.

23.

Many people find that they become ill with a cold after traveling by airplane. The air circulation systems of commercial aircraft use HEPA filters that should remove any infectious agents that pass through them. What are the possible reasons for increased incidence of colds after flights?

24.

An Atlantic crossing by boat from England to New England took 60–80 days in the 18th century. In the late 19th century the voyage took less than a week. How do you think these time differences for travel might have impacted the spread of infectious diseases from Europe to the Americas, or vice versa?

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