Brings up a point I've been thinking on . If two nurses with protective gear ( you can argue it was inadequate if you like ) did get ebola from Duncan and not ONE of the family members inside the apartment with no protective gear did, then what kind of diligent care was Louise taking? I mean think about that. She had to have been literally on top of that situation to protect herself and the kids . And apparently it is no small task and she pulled it off. I wonder if she knew/ learned/heard preventive techniques from family back in Liberia on what to do about it. Either way, if they truly are symptom free and remain so, she's a bad a$$ !
It is surprising, quite frankly, that Louise in particular remains healthy.
Also to consider is that as the disease progresses, the amount of virus in the body fluids increases to incredible amounts. The nurses were caring for him during that time, potentially with either inadequate equipment or with equipment which malfunctioned.