
Volunteers spray disinfectant at a community in Bayuquan District, Yingkou City, northeast China's Liaoning Province, on May 22, 2021. Liaoning Province have reported confirmed locally transmitted COVID-19 cases in recent days. A team of volunteers came for help, spraying disinfectants at key areas. (Xinhua/Pan Yulong)

A volunteer takes off protective suit after spraying disinfectant at a community in Bayuquan District, Yingkou City, northeast China's Liaoning Province, on May 22, 2021. Liaoning Province have reported confirmed locally transmitted COVID-19 cases in recent days. A team of volunteers came for help, spraying disinfectants at key areas. (Xinhua/Pan Yulong)

Volunteers head for a community to spray disinfectant in Bayuquan District, Yingkou City, northeast China's Liaoning Province, on May 22, 2021. Liaoning Province have reported confirmed locally transmitted COVID-19 cases in recent days. A team of volunteers came for help, spraying disinfectants at key areas. (Xinhua/Pan Yulong)

A volunteer sprays disinfectant at a community in Bayuquan District, Yingkou City, northeast China's Liaoning Province, on May 22, 2021. Liaoning Province have reported confirmed locally transmitted COVID-19 cases in recent days. A team of volunteers came for help, spraying disinfectants at key areas. (Xinhua/Pan Yulong)

A volunteer sprays disinfectant at a community in Bayuquan District, Yingkou City, northeast China's Liaoning Province, on May 22, 2021. Liaoning Province have reported confirmed locally transmitted COVID-19 cases in recent days. A team of volunteers came for help, spraying disinfectants at key areas. (Xinhua/Pan Yulong)

A volunteer sprays disinfectant at a community in Bayuquan District, Yingkou City, northeast China's Liaoning Province, on May 22, 2021. Liaoning Province have reported confirmed locally transmitted COVID-19 cases in recent days. A team of volunteers came for help, spraying disinfectants at key areas. (Xinhua/Pan Yulong)

Volunteers receive supplies from local government in Bayuquan District, Yingkou City, northeast China's Liaoning Province, on May 22, 2021. Liaoning Province have reported confirmed locally transmitted COVID-19 cases in recent days. A team of volunteers came for help, spraying disinfectants at key areas. (Xinhua/Pan Yulong)

Volunteers put on protective suits before spraying disinfectant at a community in Bayuquan District, Yingkou City, northeast China's Liaoning Province, on May 22, 2021. Liaoning Province have reported confirmed locally transmitted COVID-19 cases in recent days. A team of volunteers came for help, spraying disinfectants at key areas. (Xinhua/Pan Yulong)