According to the latest COVID-19 statistical data released by Johns Hopkins University in April 12th, as of 12:20 pm Eastern time 12 (Beijing time 13 0:00 20 hours), the total number of newly diagnosed cases in the world exceeded 500 million cases, reaching 500074490 cases and 6182982 cases of cumulative deaths. (this is March 29. Pedestrians walk on the national square in Washington, D.C.) (on March 22, in Seoul, South Korea, medical staff transported Xinguan patients to the emergency medical center.) (this is March 30. A man wearing a mask travels by boat in Sydney, Australia.) (this is April 1. People wear masks and take the bus in Berlin, the capital of Germany.) (this is an ambulance shot outside a hospital in Liverpool, England on April 1.) This is the message from Toronto before the vaccination on April 4 (Xinhua News Agency)