Source: China – South China Morning PostChina’s zero-tolerance Covid-19 strategy will not change until the authorities are confident that its vaccination campaign has been effective enough to ease restrictions, a senior health official said on Friday.Zheng Zhongwei, head of medical science development at the National Health Commission, said those strict measures – including quarantine, rigorous testing and large-scale contact tracing – will not be changed easily.“We will not relax controls until we have reached a certain level of…Read More