29 December 2021. The number of confirmed COVID-19 cases has continued to increase in Xi’an, Shaanxi province (China), as the city stepped up mass nucleic acid tests and found more risk areas. Xi’an reported 175 of Shaanxi’s 180 confirmed cases on Monday, bringing the city’s total number of confirmed cases to 811.https://www.chinadaily.com.cn/a/202112/29/WS61cbbeb6a310cdd39bc7e0b7.html