Cxorcist.
Actually your version is not true. The definition of an airborne virus does not include "sprayed" liquids such as mucus etc from a cough or a sneeze. Also, it you study all human tramsmitted viruses in the past 100 years, none has ever changed or mutated into a different form of delivery.
Let's hope ebola isn't the first to do so.
Cheers,
Soda