An outbreak of a dangerous infectious disease occurred in several areas across a large city. The Centers for Disease Control (CDC) was notified immediately, and they isolated the people who had the disease.Which statement best explains what happened during the outbreak?

An epidemic is a disease outbreak affecting many people in a particular community or region. Because this outbreak occurred in several areas of one city, isolating infected people helped contain an epidemic. A pandemic refers to an outbreak spreading across multiple countries or continents, which the question does not describe.

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