What is “isolation” and “quarantine,” and to whom does each apply?

September 17, 2020

“Isolation” refers to sick individuals who separate themselves from contact with healthy individuals. For COVID-19, people who have tested positive for COVID-19 or who have been symptomatically diagnosed with COVID-19 must isolate.

“Quarantine” refers to the separation of individuals who were exposed to an infectious disease to see if they become sick. For COVID-19, people identified as close contacts, caregivers of infected persons, or those who share quarters with infected persons must quarantine.