BEIJING - Chinese authorities have stepped up COVID-19 prevention and control measures in the face of the twin challenges of imported outbreaks of the Delta and Omicron strains, to ensure a safe Spring Festival holiday.
© Provided by Xinhua BEIJING, Jan. 16 (Xinhua) Chinese authorities have stepped up COVID-19 prevention and control measures in the face of the twin
BEIJING, Jan. 16 (Xinhua) Chinese authorities have stepped up COVID-19 prevention and control measures in the face of the twin challenges of imported outbrea