That said, I think little kids can somehow get their GI viruses to become airborne ...
When we did our pediatrics rotations at the Hospital for Sick Children (Toronto), the senior residents smugly told us that all of us, without exception, would come down with gastro during our month on the ward. We all scrubbed our hands until they were raw. Still, it was the only place I've ever been where interns and residents doing rounds with the attending would suddenly turn green and bolt for the bathroom down the hall, and the attending wouldn't miss a beat.
Not one of us survived ...