Fifty-one people who were cured of coronavirus in South Korea have again tested positive for COVID-19. Patients – from the hard-hit city of Daegu – were quarantined after being diagnosed with the virus, and then tested positive again the day they were released, the Daily Mail reports.
The Korean Centers for Disease Control and Prevention (KCDC) said the virus is likely to be ‘reactivated’ in infected patients. Scientists in the government-run health department believe the virus can stay dormant at undetectable levels in human cells.
They say that for unknown reasons viral particles can then be reactivated and begin to attack the lungs a second time.
But there is no evidence to prove that the virus works this way, and studies in monkeys have actually shown the opposite.