I don't know all the details ...
Just watched a few YOUTUBE videos...
Starts in Rats and transferred by flea bites to humans...
Once you get it..not sure of the incubation period but it kills humans in under 3-4 hours once it goes full bore in a hosts body...
Airborne through coughing and can live up to an hour in the air...
Gotta' watch and read more articles to find out specifics...
That African continent is the
"HARBINGER OF DEATH" ....