This strain looks like it is AIRBORNE, not like influenza or the common cold, but it survives in large droplets in the air. The definition of airborne is being parsed.
http://www.bbc.com/news/science-environment-20341423
From the article:
“One possibility is that the monkeys became infected by inhaling large aerosol droplets produced from the respiratory tracts of the pigs.
One of the scientists involved is Dr Gary Kobinger from the National Microbiology Laboratory at the Public Health Agency of Canada. He told BBC News this was the most likely route of the infection.
“What we suspect is happening is large droplets - they can stay in the air, but not long, they don't go far,” he explained.
“But they can be absorbed in the airway and this is how the infection starts, and this is what we think, because we saw a lot of evidence in the lungs of the non-human primates that the virus got in that way.”
Basically macaques and pigs in the same room no physical contact but Ebola transmitted.
Kinda stiffens your spine a bit, that one. Have you read Hot Zone?