A nurse prepares a dose of COVID-19 vaccine at the health service center of the Xiameilin community in Futian District, Shenzhen, south China's Guangdong Province, Jan. 24, 2021. The Shenzhen Bus Group Co., Ltd. encourages its employees to receive COVID-19 vaccines. By Friday, there are 11,004 employees having received the first shot. The inoculation of the second shot kicked off on Sunday and some 1,400 people are expected to take the shots by the end of the day. (Xinhua/Mao Siqian)