The president warned that the U.S. alone could not halt the epidemic and that without more help to stop the disease, hundreds of thousands of people could die.
Can you catch it from sweat on a cab seat? Will blood transfusions help? Who really wants to go to Africa and pitch in? Is it too late? A leading virologist answers burning questions about Ebola.
The Ebola epidemic is growing exponentially. And clinics don't have space for patients. So the U.S. government is giving families kits for treating people at home. Will this help slow the epidemic?
The ambitious scope of the intervention has impressed aid workers, who have been crying for help for months. But the plan will need to be implemented quickly to get ahead of the spread of infections.
Population growth, the cutting down of forests and increased mobility all contribute to the current crisis. "The virus hasn't changed," says one infectious disease expert. "Africa has changed."
As the Ebola outbreak rages in West Africa, it is also unfolding — in a virtual sense — inside the computers of scientists trying to predict how far the outbreak will spread and when it will end.