As China and Japan start to reopen after being shuttered by the coronavirus pandemic, doctors are finding that some patients are testing positive a second time, worrying many that immunity is impossible.
Some experts say the answer lies in faulty tests, but others have said the virus could be reactivating in people’s bodies.
Health officials in South Korea, however, say the
sensitive tests just cannot tell the difference between a virus that is dead and a virus that still lives, according to the Korea Herald.
“COVID-19 is the
most challenging pathogen we may have faced in recent decades,” Korea Centers for Disease Control and Prevention (KCDC) Deputy Director Kwon Joon-wook said, according to CNN. “At the moment, we think that there is no danger of further secondary or tertiary transmission.”