Source: AllAfrica.com
http://allafrica.com/stories/200403110738.html
On March 6, 2004 AllAfrica.com posted a Mail & Guardian article that reported, "A religious row in Nigeria is giving a foothold in West Africa to polio, the virus that twists and paralyses young limbs and was eradicated in the rest of the world 13 years ago. A 20-month-old baby girl who was infected in Côte d'Ivoire last month is confirmed to have contracted the type 1 strain that has spread from northern Nigeria through seven other countries. At least 45 people in Benin, Burkina Faso, Cameroon, the Central African Republic, Chad, Ghana and Togo have been linked to the strain imported from Nigeria. Nearly four million children in Nigeria are under threat as some of the Muslim states in the most populous African country refuse to allow vaccination."