Exactly.
This is taken from the Public Health Agency of Canada website (http://www.phac-aspc.gc.ca/lab-bio/res/psds-ftss/ebola-eng.php):
“INFECTIOUS DOSE: Viral hemorrhagic fevers have an infectious dose of 1 - 10 organisms by aerosol in non-human primates.”
Way too much is not known about this virus to be approaching it like you would any other standard infectious agent.
If a patient is on a ventilator and there is any sunctioning, that would seem to be a perfect time for fluids with EVD present to become more mobile. Why wouldn’t you want skin and hair covered? Another Freeper mentioned this - Jim Noble, I think.