Photo taken on Jan. 24, 2020 shows the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients. (Photos: Xinhua)

Photo taken on Jan. 24, 2020 shows a worker manipulating a machine on the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Photo taken on Jan. 24, 2020 shows the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Aerial photo taken on Jan. 24, 2020 shows the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Photo taken on Jan. 24, 2020 shows Guo Shenghe, a construction traffic controller, working at the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Photo taken on Jan. 24, 2020 shows the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Aerial photo taken on Jan. 24, 2020 shows the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Aerial photo taken on Jan. 24, 2020 shows the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Photo taken on Jan. 24, 2020 shows a worker manipulating a machine on the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Workers have meals at a shed of the construction site of a makeshift hospital in Wuhan, central China's Hubei Province, Jan. 24, 2020. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Photo taken on Jan. 24, 2020 shows workers at the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Aerial photo taken on Jan. 24, 2020 shows the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Aerial photo taken on Jan. 24, 2020 shows the construction site of a makeshift hospital in Wuhan, central China's Hubei Province. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.

Mao Yuanbin, a driver of an excavator, has a meal at the construction site of a makeshift hospital in Wuhan, central China's Hubei Province, Jan. 24, 2020. The makeshift hospital is expected to pool medical resources to provide isolated and efficient treatment for infected pneumonia patients.