Why are some South Koreans who recovered from the coronavirus testing positive again?
![](https://r58b8e.a2cdn1.secureserver.net/wp-content/uploads/2020/01/worldnewsdyil2auoc8za.gif?time=1720029343)
South Korean health officials are investigating several possible explanations for a small but growing number of recovered coronavirus patients who later test positive for the virus again.