Facing Roadblocks, Vast Global Vaccination Effort Gets Underway An operation to supply billions of coronavirus vaccine doses to poorer countries has started. But as rich countries buy most of the available supply, stark inequalities remain. The first shipment of Covid-19 vaccines distributed by the Covax facility arriving at Kotoka International Airport in Accra, Ghana.Credit...Francis Kokoroko/UNICEF Feb. 24, 2021 DAKAR, Senegal — A long-awaited global sharing program designed to make vaccine access more equal began on Wednesday, when hundreds of thousands of doses arrived in the West African nation of Ghana — the first of two billion that organizers hope to deliver worldwide this year.