Peng Zhiyong (C), head of the department of critical care medicine of Zhongnan Hospital, performs diagnosis on a patient with his colleagues in Zhongnan Hospital of Wuhan University in Wuhan, central China's Hubei Province, Jan. 24, 2020. Central China's Hubei province reported 105 new confirmed cases of pneumonia caused by the novel coronavirus (2019-nCoV) and seven new deaths on Thursday, the provincial health authorities announced Friday. (Photos: Xinhua)

Medical workers write names on each other's protective suits for recognition in Zhongnan Hospital of Wuhan University in Wuhan, central China's Hubei Province, Jan. 24, 2020. Central China's Hubei province reported 105 new confirmed cases of pneumonia caused by the novel coronavirus (2019-nCoV) and seven new deaths on Thursday, the provincial health authorities announced Friday.

Medical workers work in the ICU of Zhongnan Hospital of Wuhan University in Wuhan, central China's Hubei Province, Jan. 24, 2020. Central China's Hubei province reported 105 new confirmed cases of pneumonia caused by the novel coronavirus (2019-nCoV) and seven new deaths on Thursday, the provincial health authorities announced Friday.

Aerial photo taken on Jan. 24, 2020 shows mechanical equipment working at the construction site of a special hospital in the Caidian District of western suburb of Wuhan, central China's Hubei Province. The central China metropolitan of Wuhan will follow Beijing's SARS treatment model to build a special hospital for admitting patients infected in the outbreak of pneumonia caused by the novel coronavirus.

Aerial photo taken on Jan. 24, 2020 shows mechanical equipment working at the construction site of a special hospital in the Caidian District of western suburb of Wuhan, central China's Hubei Province. The central China metropolitan of Wuhan will follow Beijing's SARS treatment model to build a special hospital for admitting patients infected in the outbreak of pneumonia caused by the novel coronavirus.