Source: China – South China Morning PostChinese financial hub Shanghai started a two-stage Covid-19 lockdown and mass testing on Monday, moving away from a strategy of targeted controls.Virus experts say the lockdown – the city’s biggest – is necessary to stop an outbreak of the highly transmissible Omicron variant from worsening.Shanghai reported 3,500 new locally transmitted cases on Monday, most of them with mild or no symptoms. More than 10,000 infections have been found through mass testing in the past week – over 9,900 of them…Read More