Wrong. No break in the skin other than mouth, nose, eyes, etc needed.
Everything the infected touches becomes a carrier. Might not live long but the infected isn't standing still but distributing the virus all over the place.
I agree.
But the risk for that seems quite low.
They are wearing protective suits.
What strikes me is how unlikely it is that so many “protected” workers somehow get body fluids in their nose, mouth, etc.
Also, I'd be surprised if an Ebola virus can survive the journey through the stomach, unless, of course, it finds an entry through ulcers, or if the mouth has canker sores or gum disease, or if the esophagus has been damaged by reflux.