On Aug 3, in the No 25 Courtyard of Erdaowan Road, Tianshan district, Urumqi, in Northwest China's Xinjiang Uygur autonomous region, university student volunteer Ekebar Emet shed his protective garment and took a well-earned drink of water. He was thirsty and sweaty.

"Please consciously follow the epidemic prevention requirements and do not gather," he said, holding a loudspeaker in his hand as he walked back and forth in the courtyard. "If you feel unwell, please take the initiative to tell the community," he added. His work is part of the efforts to battle against the epidemic, and prevention and safety methods are constantly being promoted to the residents of the community.