Californians are staying infected with the coronavirus for a long time. Here’s why

Health officials recommend that anyone infected with the coronavirus isolate for at least five days. But for many, that timeline is becoming overly optimistic. The isolation period, which the U.S. Centers for Disease Control and Prevention shortened in December from 10 days to five, is more a starting point than a hard-and-fast rule in California. According to the state Department of Public Health, exiting isolation after five days requires a negative result from a rapid test on or after the fifth day following the onset of symptoms or first positive test — a step not included in federal guidelines. But many people don’t start testing negative that early. “If your test turns out to be positive after five days, don’t be upset because the majority of people still test positive until at least Day 7, to Day 10 even,” Dr. Clayton Chau, director of the Orange County Health Care Agency, said during a briefing Thursday. “So that’s the majority. That’s the norm.” The isolation period, which the U.S. Centers for Disease Control and Prevention shortened in December from 10 days to five, is more a starting point than a hard-and-fast rule in California. According to the state Department of Public Health, exiting isolation after five days requires a negative result from a rapid test on or after the fifth day following the onset of symptoms or first positive test — a step not included in federal guidelines.