Aerial photo shows the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
A man works at the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
Aerial photo shows the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
Aerial photo shows the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
Aerial photo shows the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
Aerial photo shows workers working at the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
Aerial photo shows the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
People work at the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
People work at the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
A man works at the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
Aerial photo shows the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
People work at the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
People work at the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
Aerial photo shows the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
A man works at the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)
Aerial photo shows the construction site of Leishenshan Hospital in Wuhan, central China's Hubei Province, Feb. 4, 2020. Leishenshan Hospital is one of the makeshift hospitals to treat pneumonia patients infected with the novel coronavirus. (Xinhua/Xiao Yijiu)