The World Bank on Monday pledged as much as $200 million in emergency funding to help three West African nations fight the deadly Ebola epidemic following requests from the World Health Organization and officials from the three countries. The bank said the financing would help pay for medical supplies, salaries and other materials urgently needed to stabilize the health systems in Guinea, Liberia and Sierra Leone, where the death toll has reached nearly 900. "I am very worried that many more lives are at risk unless we can stop this Ebola epidemic in its tracks," World Bank President Jim Yong Kim said in a statement.