Zheng Lei (L), leader of Haikou civil disaster and emergency relief team, introduces epidemic prevention and control knowledge to a resident with his teammate near a community in Meilan District in Haikou, south China's Hainan Province, Feb. 15, 2020. Founded in 2012, Haikou civil disaster and emergency relief team now has more than 100 members. They have been active in the frontlines of epidemic prevention and control in Haikou City since the outbreak of novel coronavirus in China. (Xinhua/Yang Guanyu)
