A panel of top medical experts in South Korea has found that patients who were feared to have been struck down with coronavirus once more had, in fact, not been infected again.
Clinical experts concluded that recovered patients who had again tested positive for the disease were not “reinfected”. It was instead determined that they were false positives.
Oh Myoung-don, who led the committee, later said the false positives were due to technical limits of a polymerase chain reaction (PCR) test – one carried out on Covid-19 patients.
He said: “The tests detected the ribonucleic acid of the dead virus. PCR testing that amplifies genetics of the virus is used in Korea to test Covid-19, and relapse cases are due to technical limits of the PCR