But even if the woman is truly negative, it's only a matter of time. There are now confirmed cases in Lagos, Nigeria and Morocco.
A mutated form of Ebola that could be transmitted by air would explain a lot. Like the fact that many of the healthcare workers in Liberia and other hot zones were contracting the disease even though they were wearing hazmat suits.
That's virulent enough on its own merit.
Seven suspected cases in the Philippines as well from workers returning from Sierra Leone.
http://english.cntv.cn/2014/08/02/VIDE1406955241574888.shtml
Don’t hazmat suits have particle masks that would shield from an airborne virus?