China recently shifted its COVID-19 protocols from prevention to treatment, citing weaker virus strains, some level of immunity, as well as years of experience in dealing with the disease. CGTN's Zhao Yunfei, one of our reporters in Wuhan during the initial outbreak, takes a look back at how China's epidemic prevention measures developed over the past three years.
Copyright © 2020 CGTN. Beijing ICP prepared NO.16065310-3