The coronavirus may be “reactivating� in people who have been cured of the
illness, according to Korea’s Centers for Disease Control and Prevention.

About 51 patients classed as having been cured in South Korea have tested
positive again, the CDC said in a briefing on Monday. Rather than being
infected again, the virus may have been reactivated in these people, given
they tested positive again shortly after being released from quarantine,
said Jeong Eun-kyeong, director-general of the Korean CDC.