GENEVA (AP) — An expert group convened by the World Health Organization said it “strongly supports urgent and broad access” to coronavirus vaccines, including booster doses. The call is a reversal of the U.N. health agency’s previous insistence that booster doses weren’t necessary and contributing to vaccine inequity. In a statement on Tuesday, WHO said its expert group concluded that immunization with authorized COVID-19 vaccines provide high levels of protection against severe disease and death amid the global circulation of the hugely contagious omicron variant. Last year, WHO’s director-general Tedros Adhanom Ghebreyesus called for a moratorium on booster doses, pleading with rich countries to donate their vaccines instead.