Coronavirus was again recovered in 2.1% of patients recovered of COVID-19 in South Korea, CNN reported referring to the Korea Centers for Disease Control and Prevention.

According to the source, 7,829 patients in South Korea were cured of COVID-19 and were discharged, but later, 163 coronavirus tests came back positive against - on average 13.5 days after recovery.

The government is investigating this phenomenon.

Most experts claim the likelihood of re-infection with coronavirus after recovery is very low. Therefore, the problem may be in the tests.