This photo taken on February 28, 2020 shows a passenger wearing a face mask as he shows a green QR code on his phone to show his health status to security upon arrival at Wenzhou railway station in Wenzhou. - The National Health Commission on March 1 reported 573 new infections, bringing the total number of cases in mainland China to 79,824. (Photo by NOEL CELIS / AFP) (Photo by NOEL CELIS/AFP via Getty Images)