President Buhari today signed the updated Abuja commitment on polio eradication at the presidential Villa Abuja. Present at the ceremony were Chairman of Dangote Group, Aliko Dangote, Chairman Bill and Melinda Gates Foundation and world’s richest man, Bill Gates, who arrived Nigeria today to sign a Memorandum of Understanding between his foundation, the Aliko Dangote foundation and the governments of Kaduna,Borno, Bauchi, Yobe, Sokoto, Kanostates on immunization and polio eradication in Nigeria. More pics after the cut..