It is contradictory.
And she did NOT follow protocols.
She acted in a manner of a spoilt brat who should have had her backside warmed and put in a corner.
It is not contradictory:
People who have been exposed to Ebola are not contagious unless and until they develop Ebola symptoms. So, no quarantine is necessary and thus not part of the protocols.
But, when they develop symptoms and start shedding bodily fluids (sweat, vomit, diarrhea, etc.), those fluids are VERY contagious. Which means that living with someone when they begin to show symptoms is highly risky. So, avoiding close contact is necessary and thus part of the protocols.