Volunteers carry out disinfection work in Jiang'an District of Wuhan, central China's Hubei Province, Feb. 9, 2020. (Xinhua/Cheng Min)

Grid-based community worker Huang Lifang (2nd L) and volunteers Liu Ying (2nd R) and Zhang Qi (1st R) deliver food to a senior citizen living alone in Wuhan, central China's Hubei Province, Feb. 7, 2020. (Xinhua/Xiao Yijiu)

Volunteer Wang Zhen, member of the volunteer group "Wuhan Emergency Team" taking pregnant women without access to vehicles to the hospital, checks information in a car in Wuhan, central China's Hubei Province, Feb. 29, 2020. (Xinhua/Xiao Yijiu)

Recovered coronavirus patient Cheng Lin donates her plasma at Wuhan Jinyintan Hospital in Wuhan, capital of central China's Hubei Province, Feb. 18, 2020. (Wuhan Jinyintan Hospital/Handout via Xinhua)

People who are organized and guided by the "Good Companions Response Team" pose for a group photo at the "Wuhan Livingroom" makeshift hospital in Wuhan, central China's Hubei Province, Feb. 28, 2020. "Good Companions Response Team" is a team mobilized by Yu Zhihong, a social work professor from Wuhan University, to help people in need amid the epidemic. (Xinhua)

Community workers and volunteers use a speaker to publicize the information about prevention and control of the novel coronavirus at a street near the Yellow Crane Pavilion in Wuhan, central China's Hubei Province, Feb. 7, 2020. (Xinhua/Xiao Yijiu)