China Tests 12.5 Million in Zhengzhou for Covid in Six Hours, Gears Up for Same in Shenzhen, Tianjin

The global outbreak triggered late last year by the Omicron variant of SARS-CoV-2 has affected China, too, where health officials and public administrators have worked tirelessly to keep the country’s vaunted “zero Covid” policy in place and control the outbreak along with still-existing Delta variant cases.