I have been wondering this myself because whilst experts are saying that direct contact with bodily fluids is required for transfer of ebola, they are also fiercely incinerating passports and fumigating apartments. So I found this on a BBC article about plane risk and thought I'd share:
How Ebola spreads
The virus "is ferocious in the body but it is a wimp when it is on an inanimate surface", he adds. "As soon as it has arrived on the inanimate surface it has started to die off."
On inert surfaces, the virus does not last for long - "I would imagine no more than a few minutes", according to Peter Hotez, dean of the National School of Tropical Medicine at Baylor University. The exception would be "if you see visible blood or visible secretion".