john sudworth. the eerie sound of a city in lockdown. shouting wu han‘s residents trapped in their homes, shouting encouragement to each other. ok, here we are, day five of the lockdown. bored. khan lambertgran. nan, hello. hello. she was only meant to be visiting for a short break, and although there's enough food, her medication is running dangerously low. china's priority is to show it's getting a grip. alongside teams of army medics, the premier, li keqiang, was flown into wuhan, urging an all—out national effort to contain the virus. even getting on a beijing subway train has become a surreal experience. workers in full hazmat suits, checking every passenger. anybody with a temperature of 37.3 or above is instantly isolated. but there are troubling signs. a man films a doctor telling him his mother probably has the virus, but there are no testing kits to confirm it. the man tells me that the hospitals that do have the tests have no spare beds. "there are so many cases like ours," he says, "wandering the city in search of treatment." and on state tv, the mayor of wuhan has admitted information was not released on time, because he was waiting for higher approval. we don't know how thi