A medical worker collects a throat swab from a woman at a nucleic acid test site in Shunyi district of Beijing, on Dec 28, 2020.(Photos: Xinhua)

Villagers sort out just-harvested mushrooms at an edible fungus growing base at Minjiachang village, Minxiao township in Jiangkou county of Southwest China's Guizhou province, Jan 3, 2019.