While Ebola is not air-born and not easily spread and can be contained ... that all assumes morons aren’t running the show.
Humans spread bodily fluids a lot more than we tend to think (sneezing, moisture onto surfaces, sweat onto clothing, ... touching lots of stuff second-to-second). The range may not be far, but it’s not trivial - and the disease is extremely virulent once a tiny amount manages to touch you. Spending any time in an infectee’s home has distressing odds of you touching something he touched and left a still-viable virus on. With a 0.06 micron size (IIRC), won’t take much of an entry point on your skin to infect.