No vehicles are seen on the Second Wuhan Yangtze River Bridge after the city is sealed off, Jan 27, 2020. (YUAN ZHENG / FOR CHINA DAILY)

Zhou Hong (center), a worker of the Xiqiao neighborhood committee, accompanies a person suspected of contracting the novel coronavirus to undergo a screening test at a clinic in Wuhan, Jan 27, 2020. (YUAN ZHENG / FOR CHINA DAILY)

Zhou Hong (right), a community worker, accompanies a person suspected of contracting the novel coronavirus for a further medical check at a hospital in Wuhan, Jan 27, 2020. (YUAN ZHENG / FOR CHINA DAILY)

A subdistrict employee drives a person suspected of contracting the novel coronavirus to a hospital for medical treatment, Jan 28, 2020. (YUAN ZHENG / FOR CHINA DAILY)

Employees of Xiqiao neighborhood committee eat instant noodles at the office on the evening of Jan 27, 2020. (YUAN ZHENG / FOR CHINA DAILY)

A neighborhood committee employee hands a pack of masks to a senior resident and advises her to stay at home, Jan 28, 2020. (YUAN ZHENG / FOR CHINA DAILY)

Employees of the Xiqiao neighborhood committee receive disinfectant distributed by the subdistrict government, Jan 28, 2020. (YUAN ZHENG / FOR CHINA DAILY)

A worker sprays disinfectant at a residential building in Tianmendun neighborhood in Wuhan, Jan 28, 2020. (YUAN ZHENG / FOR CHINA DAILY)

Workers spray disinfectant at a residential area in Xiqiao neighborhood in Wuhan, Jan 28, 2020. (YUAN ZHENG / FOR CHINA DAILY)

An employee takes a call at the Xiqiao neighborhood committee, Jan 27, 2020. (YUAN ZHENG / FOR CHINA DAILY)

A security worker speaks through a loudspeaker to remind residents to take precautions against the coronavirus epidemic at a residential community in Xiqiao neighborhood, Jan 28, 2020. (YUAN ZHENG / FOR CHINA DAILY)

The service center of the Xiqiao neighborhood is still open at night, Jan 28, 2020. (YUAN ZHENG / FOR CHINA DAILY)