The Ebola virus continues to tragically affect West Africa and beyond, with approximately 14,000 cases and 5,000 deaths (WHO, 12 Nov 2014). The hardest-hit countries have been Guinea, Liberia, and Sierra Leone. The religious makeup of these countries is varied, with Guinea and Sierra Leone having majority Muslim populations (88% and 63%, respectively). Liberia is about 42% Ethnic religionist and 41% Christian, with 15% following Islam. This map displays these percentages, and the boxes are sized by population. The largest country of these three is Guinea with 12 million people, followed by Sierra Leone (6 million) and Liberia (4 million).
For info on affected people groups and ways to pray, see this page at Joshua Project.