BEIJING, May 13 (Xinhua) -- Beijing reported 51 new locally transmitted COVID-19 infections between 3 p.m. Thursday and 3 p.m. Friday, Pang Xinghuo, deputy head of the Beijing municipal disease prevention and control center, told a press briefing on Friday.
Between April 22 and 3 p.m. Friday, 979 infections were reported in Beijing, Pang said.
Among all the cases, 358 were reported in Chaoyang District, 276 in Fangshan, 88 in Haidian, and the remaining cases were detected in 12 other districts across the city.
During Thursday's mass screening, over 17.1 million samples were collected and tested, and four tubes collected in a mixed testing approach were found to be positive, said Li Ang, deputy director of the Beijing Municipal Health Commission.
Beijing plans to conduct three rounds of mass nucleic acid testing in 12 districts from Friday to Sunday. Over 9,600 sampling sites have been set up across the city to facilitate the mass testing campaign, Li said.