Source: China – South China Morning PostA “zero tolerance” approach to Covid-19 will not succeed now that the coronavirus has fully adapted to people and cannot be eliminated, according to a renowned scientist whose work helped China avert a second Sars outbreak in 2004.China should focus on building a shield of protection using vaccines, and should test its population’s immunity level after vaccination to determine which jabs to administer, Guan Yi told Phoenix TV in an interview aired on Monday.Guan is director of the State Key…Read More