I am not sure of the source, but I think is was a Dr. from Tulane that had returned from Africa that said he had talked with many of the healthcare workers that came down with Ebola. He said that they could not identify an incident (torn glove, needle stick, etc.) when they were exposed.
I suspect it is not “airborn”, but the high pressure spray cleaning causes micro droplets that get inhaled during clean up.
As I commented a couple of days ago on another thread. In that connection, consider the CDC's definition of "contact" for this outbreak:
What U.S. Hospitals Need to Know to Prepare for Ebola Virus Disease
"And casual contact we’re defining in here to be within three feet of a patient for a prolonged period of time."
Saw a number of odd vehicles eastbound on I70 in central Kansas last week - unmarked white bus and pickups pulling "TR12 Medical" trailers, all sporting "AF" government plates - Army or NG trucks (which we see commonly, but not ...) carrying obvious medical crates.
Anyone who thinks there might be some steps they could take to reduce their risk, or to shelter-in-place, and who hasn't begun taking some of those steps, is not paying attention.