Isolation and quarantine help protect the public by preventing exposure to people who have or may have a contagious disease.

Isolation separates sick people with a contagious disease from people who are not sick.

separates sick people with a contagious disease from people who are not sick. Quarantine separates and restricts the movement of people who were exposed to a contagious disease to see if they become sick.

U.S. Quarantine Stations, located at ports of entry and land border crossings, use these public health practices as part of a comprehensive Quarantine System that serves to limit the introduction of infectious diseases into the United States and to prevent their spread.

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