[yoshizar]

Wasn't there strong circumstantial evidence that the Ebola Reston strain was spreading without any bodily contact? It was discovered in lab monkeys in Virgina and spread from room to room of monkeys without any direct contact between the monkeys. It's possible caretakers were spreading it, but it seemed more likely that the strain had gone airborne.

[hga]

I've read there was monkey to human to monkey contact, and it's acknowledged there's the possibility that was a route.

[simplemath]

IIRC the conclusion was that the air ducts were the only feasible infection vector