That’s sad(About the woman’s brother) Duncan did the right thing trying to help this poor woman, but did the wrong thing by coming here. He put everyone around him at risk, but I dont think his family was in that apartment, he probably gave them advance warning that he was coming, infected with Ebola, and to leave
It may be that it is only contagious in the latter stages - which may explain the nurses getting it and the family not. If everyone was susceptible to it in the early stages, it seems that many more people would have become infected.
I don't know what to believe (but I am stocking up on alcohol based hand sanitizer or staying home for the duration LOL).