As long as the number of infected people rises exponentially, the likelihood of exporting Ebola to other countries does as well.
"The disease itself hasn't changed, with essentially the same fatality rate and transmissibility as ever. What is different is the number of sickened individuals," said Dr. Allen Hunt, author of the Complexity paper. "If trends continue a few more months, the global community could be forced into a terrible ethical dilemma—either risking the escape of Ebola to other poor, war-torn countries, or sealing off borders to countries in West Africa, with unimaginable humanitarian consequences."
More information: Hunt, A. G. (2014), Exponential growth in Ebola outbreak since May 14, 2014. Complexity, 20: 8–11. DOI: 10.1002/cplx.21615