6 weeks. There was a study showing that Ebola Zaire could take as long as 6 weeks to produce symptoms after infection...and even then as much as 2% of people STILL wouldn't show symptoms despite infection.
EVERY SINGLE THING that this administration and the CDC have said about Ebola is a damned lie - other than saying that it is lethal. Beyond that, if their lips are moving, they're lying (IOW, business as usual).
60 days is fine by me.