Fig. 2.

Milestone events of China during the outbreak and epidemic of COVID-19. These milestone events mainly refer to “Fighting Covid-19, China in Action”. Fangcang shelter hospitals: large-scale, temporary hospitals, rapidly built by converting existing public venues, such as stadiums and exhibition centers, into health-care facilities. Red color, acute phase of COVID-19 pandemic in China. Yellow color, transition period of COVID-19 pandemic in China. Both red and yellow periods indicate the early stage of COVID-19 pandemic in China; Green color depicts the period of COVID-19 under control in China (late stage of COVID-19 pandemic in China). The “early stage” of COVID-19 pandemic in China was defined as the time between December 2019 and April 1st, 2020, and the “late stage” of COVID-19 pandemic in China was the time after April 1st, 2020. WTO=World Trade Organization.