© Reuters. People watch as barricades are set up outside an entrance to Wanxia urban village as part of coronavirus disease (COVID-19) control measures in Shenzhen, Guangdong province, China August 29, 2022. REUTERS/David Kirton BEIJING (Reuters) – Several big Chinese cities escalated COVID-19 restrictions on Tuesday, with Shenzhen closing more businesses and Dalian locking down […] More