President Yahya Jammeh of Gambia attends the 44th summit of the 15-nation west African bloc ECOWAS at the Felix Houphouet-Boigny Foundation in Yamoussoukro on March 28, 2014. The 15-member Economic Community of West African States said the Ebola outbreak was now "a serious threat to regional security" and appealed for help from the international community.Guinea's capital Conakry was on high alert Friday after a deadly Ebola epidemic which has killed dozens in the southern forests was confirmed to have spread to the sprawling port city of two million people. AFP PHOTO / ISSOUF SANOGO        (Photo credit should read ISSOUF SANOGO/AFP/Getty Images)