The CNN website has posted time-lapse video of the first of Wuhan's two new hospitals for coronavirus patients being built.
More than 1,000 workers and 100 machines worked non-stop for days.
Huoshenshan Hospital in Wuhan and a second 1,500-bed facility due to open soon were built by construction crews working around the clock.
The Wuhan healthcare facilities mark the second time China has built specialized hospitals in a matter of days. As severe acute respiratory syndrome (SARS) spread in 2003, a facility in Beijing was constructed in a week.
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