The virus must be infecting people thru an airborne route. This means, any one traveling in an airplane with someone infected with the virus is at risk. This also implies that people are infectious BEFORE 21 days.
I should say, “might be”
Breaking News this morning said there is a 3ft area to catch Ebola from an infected person, which means it isn’t airborne is a lie.....any sneeze or cough has a three ft reach OR MORE IF OUTSIDE AND THE WIND IS BLOWING.