Wuhan, the epicenter of China's COVID-19 outbreak, revised its number of confirmed cases and deaths on Friday. The number of confirmed cases rose by 325 for a new total of 50,333. And the number of fatalities increased by 1,290 to a total of 3,869. What accounts for  the revision? CGTN's host Liu Xin interviewed Du Bin, director of the Medical ICU at Peking Union Medical College Hospital in Wuhan. Du has been on the front line for the past three months, working with severely ill patients. He shares his view on COVID-19 data revision.