The government keeps issuing assurances: there is no threat...
Its problem is obvious: people know that officials lie.
The more likely that bad news will create panic, the more certain the public is that the officials are lying, spinning, or otherwise deceiving.
We can be sure of 2 things:
1. Ebola victims will fly into the USA
2. this will be officially dismissed as no threat
If there were HazMat suit futures, I would be long.