Source: China – South China Morning PostThis is the first part of a series on China’s zero-tolerance Covid-19 strategy. Here, Zhuang Pinghui looks at the road to herd immunity as more transmissible variants emerge and what that means for hopes of opening up.When Covid-19 vaccines were rolled out in China earlier this year, the great hope was that a way out of the pandemic had been found.Once enough people had been vaccinated, enough of a community barrier against the coronavirus would have been built, so that outbreaks could be…Read More