A visitor scans a QR code to log his entry at the Seongdong district government office building in Seoul, South Korea, on Friday, Sept. 4, 2020. Korea Centers for Disease Control and Prevention Deputy Director Kwon Jun-wook said tighter social distancing rules have “clearly” helped bring down the pace of new infections, a trend that’s likely to continue after the coming weekend. Photographer: SeongJoon Cho/Bloomberg via Getty Images