A press release by the KCDC confirms that 91 patients who had recovered from COVID-19 have tested positive again in South Korea.
The health officials have said that it was unclear what was behind the trend, with epidemiological investigations still under progress.
The Guardian adds that the World Health Organization (WHO) has been looking into reports of such patients.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.