Did the patient use the restroom? Could be very likely. What type of hygiene do they have? I don’t want to get gross, but can’t you spread microbes from feces and urine onto doorknobs upon exiting bathrooms? Could they carry them on their clothing when they sat down in a chair? If they wiped their wet hands on their pants after washing them, could there be any type of microbe transmission through the microscopic particles of water/moisture?
One of the Nigerian medicos that later became infected got it from touching a doorknob.
Heck yeah, to everything you said, whether or not this Ebola-stricken patient used the restroom. Anything he touched, or brushed onto, very likely got his germs on it. Any coughing or sweat would have it, never mind blood or feces. All bodily fluids.
I was a microbiology lab tech when I was younger. I wore face masks, gloves, coats, hair nets, booties, etc. Washing hands nearly constantly was a given. Cross contamination was always a concern. We were very controlled and disciplined in our handling of materials and specimens.
In a hospital waiting room, there won’t be nearly the same amount of concern about contamination. I hope that changes here and now. We have a lot of new viruses entering our country.