September 26, 2011 - Bill Gates, co-chair, and Jeff Raikes, chief executive officer, of the Bill & Melinda Gates Foundation, met with Alhaji Mohammad Sa’adu Abubakar III, His Eminence the Sultan of Sokoto to discuss the ongoing campaign to end polio in Nigeria.

September 26, 2011 - Bill Gates, co-chair, and Jeff Raikes, chief executive officer, of the Bill & Melinda Gates Foundation, met with local government officials and traditional leaders to discuss the ongoing campaign to end polio in Nigeria.