Beware of coronavirus outbreaks coming back to life, WHO warns

Health experts have highlighted challenges with the coronavirus epidemic, with the WHO warning of the risk of outbreaks coming back to life and researchers in mainland China and Hong Kong pointing out a major difficulty with diagnosis.The alerts came on Friday as the World Health Organisation declared that the risk of global spread of the coronavirus epidemic had become “very high” – though the UN health agency stopped short of calling it a pandemic.In a joint study published in the New England…