From the BBC article :
"Dr Kobinger stresses that the transmission in the air is not similar to influenza or other infections.
He points to the experience of most human outbreaks in Africa.
"The reality is that they are contained and they remain local, if it was really an airborne virus like influenza is
it would spread all over the place, and that's not happening."
The article continues that there was airborne transmission from pigs to monkeys. Apparently downwind from coughing ill (Ebola) pigs.
A Freep article on 4/16/14 discusses coughing and the size of dropplets remaining suspended in the air :
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In the cloud: How coughs and sneezes float farther than you think