How did the Chinese turn the tide with coronavirus?

There are now significantly more new cases of coronavirus outside China than inside. On the first day of this week there were only 44 new cases in the whole country. Just a few weeks ago that figure was in the thousands. While the authorities have been criticised for their initial slow response to the outbreak, allowing it to spread quickly, since January they have taken unprecedented action to clamp down on the spread of the virus. Whole cities have been put into quarantine and travel restrictions have been imposed on millions of people. New hospitals have been built with lightning speed and huge amounts of money has been spent on testing kits and other technology to fight Covid-19. China has been accused of infringing civil liberties in its fight against Coronavirus but it has also been praised for the extreme public health measures it has taken. So what did the Chinese actually do and can it be replicated elsewhere? Presenter: Tanya Beckett Producer: John Murphy (Photo: A man talks through a barricade wall built to control entry and exit to a residential compound in Wuhan, Hubei province, China.Credit: Getty Images)