Why We are Hopeful About Improving Health in Africa, by Aliko Dangote and Bill Gatesby Efo Korsi Senyo | Executive Editor April 25, 2017 0 An Opinion Piece by Aliko Dangote and Bill Gates Aliko Dangote and Bill Gates NEW YORK, United States of America, April 25, 2017/ -- This week, more than 138,000 vaccinators ...