Built specifically to handle patients infected with the novel coronavirus that has sickened thousands of people and left more than 360 dead, it took workers just 10 days to complete work on the Huoshenshan Hospital on the outskirts of the city with its 11 million residents, where the outbreak is believed to have originated.

At 10 a.m. Monday (9 p.m. Sunday E.T.) the hospital opened its doors and welcomed its first patients, according to Chinese state media. There was no information about the patients or their conditions.

Construction of the hospital began on Jan. 24 with a crew of 7,000 people working around the clock. Live video of the construction site was carried by Chinese state media and showed the sheer scale and speed of the project.