This year’s Spring Festival was not a normal holiday. China’s vacation plans were derailed by an outbreak of a novel coronavirus that has killed more than 300 people and infected at least another 10,000 as of Feb. 2. During the past 10 days, the country has entered something resembling a war footing, quarantining entire cities and rushing reinforcements to overstretched and undersupplied hospitals. Here is a selection of images from the heart of the crisis.

Frontline: Wuhan

A medical worker in full protective gear walks through Zhongnan Hospital in Wuhan, Hubei province, Jan. 23, 2020. Zheng Chaoyuan and Wei Jiaming for Sixth Tone

A medical worker is on shift at the infectious diseases department at Wuhan Union Hospital in Wuhan, Hubei province, Jan. 23, 2020. Xiao Yijiu/Xinhua

An aerial view of the construction site for a special hospital for treating novel coronavirus patients in Wuhan, Hubei province, Jan. 24, 2020. The new facility, named Huoshenshan Hospital, is completed on Feb. 2, 2020. Xinhua

Workers continue the construction of another special new facility, named Leishenshan Hospital, in Wuhan, Hubei province, Jan. 30, 2020. Xiao Yijiu/Xinhua

A medical worker (left), who is traveling to Wuhan to reinforce the city’s overstretched hospitals, says goodbye to a family member in the northwestern city of Urumqi, Jan. 28, 2020. Wang Fei/Xinhua

Cities on Alert

Passengers arriving in Shanghai wait to pass an infrared thermal imaging scanner, designed to identify those suffering from a fever, at Shanghai Railway Station in Shanghai, Jan. 31, 2020. Yi Chuan for Sixth Tone

Villages Take Protective Action

Families Take Their Own Measures

Editors: Dominic Morgan and Qi Ya.