Perhaps the problem is your choice of words. Saying "selection pressure" implies intent, determination, a collective mission, if you will. Evolution has none of those drivers. It has no objectives. It sets no goals. And it certainly does not operate in some collective purpose driven form within a population.
It's random mutations that either survive the environmental contex within which they exist, or they don't. In this case the fact that more people are infected does not mean that we are at the doorstep of a "super-ebola" mutation any time soon. It could take ONE mutation or 100 MILLION YEARS of intense mutations to arrive at "super-ebola". Nobody knows.
The virus certainly isn't under any "selection pressure" to do a darn thing. It could become perfectly benign in six months just as much as it could become horrifically good at killing us by the millions.
It's random mutations that either survive the environmental contex within which they exist, or they don't. In this case the fact that more people are infected does not mean that we are at the doorstep of a "super-ebola" mutation any time soon. It could take ONE mutation or 100 MILLION YEARS of intense mutations to arrive at "super-ebola". Nobody knows.
The virus certainly isn't under any "selection pressure" to do a darn thing. It could become perfectly benign in six months just as much as it could become horrifically good at killing us by the millions.