Not really. The term genetic drift is used to describe the fact that viruses isolated early in an outbreak are slightly different than viruses isolated later. Viruses even mutate within a single person during the course of a single infection.
By studying the genetic drift, researchers can determine if the outbreak started from a single zoonotic infection, or multiple infections from different zoonotic sources.
Thanks again.
I guess epidemiology has coopted the term. In the study of evolution it means separation of a gene pool from another, usually geographically, and explains the different racial groups on the planet, along with other three components of evolution (mutation, mixture, and natural selection).
Applied to ebola, it would explain different strains appearing in different countries, for instance, or an airborne strain developing in one area.
As for viruses mutating within a single person, yes, that is a big danger, because of the heavy viral load of this disease, but is only tangentially related to genetic drift as it has usually been understood.