South Korea reported on Monday that at least 116 people initially cleared of the new coronavirus had tested positive again, although officials suggested they would soon look at easing strict recommendations aimed at preventing new outbreaks.
South Korea reported only 25 new cases overall on Monday, but the rise in "reactivated" patients has raised concerns as the country seeks to stamp out infections.
Officials are still investigating the cause of the apparent relapses. But Jeong Eun-kyeong, director of the Korea Centers for Disease Control and Prevention (KCDC), has said the virus may have been reactivated rather than the patients being re-infected.