A woman receives a Covid-19 vaccine booster in Derby, England. A WHO official has issued a warning that there is still 'a long way to go' in the fight to keep the virus under control. PA
A woman receives a Covid-19 vaccine booster in Derby, England. A WHO official has issued a warning that there is still 'a long way to go' in the fight to keep the virus under control. PA

WHO envoy: world 'not even half way' to winning Covid race