“Ebola is contagious, but it is not *that* contagious.” - G
How would you like to turn a doorknob that an ebola infected person turned 4 hours earlier?
Would you let your second grader turn that doorknob?
To me, the school is making exactly the correct decision.
The apartment Duncan was in presumably had plenty of doorknobs, faucets, etc which he had touched after vomiting and diarrhea. Nobody else got infected. Probably some luck, but also a very low risk,