A new analysis indicates that the outbreak's fatality rate is over 70 per cent - rather than 50 per cent as previously claimed by the World Health Organisation - and that the total number of affected individuals could exceed 1 million by early next year, researchers said.
As long as the number of infected people rises exponentially, the likelihood of exporting Ebola to other countries does as well, they said.
"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," said Hunt.
The study was published in the journal Complexity.