This is super old news. As in, two decades old news.

The Reston strain of the ebola virus (aka the Reston virus) has been airborne for a long time, and as in the op, was discovered in macaques. But it isn't really infectious to humans so all the people freaking out in here need to chill the fuck out. Yes, the Reston virus is airborne. Yes, it can be transmitted from pigs to macaques. This is all very old news.

It is totally non-pathogenic to humans though. Calm down!

[link to en.wikipedia.org]