4 ms·What selective pressure exists in nature to result in a virus like this naturally evolving?by wang_li 3y agoWhat selective pressure exists in nature to result in a virus like this naturally evolving?pillefitz 3y agoDo terrorist cells count?theGnuMe 3y agoSelective evolutionary pressure is the mechanism. Mutants like this would be benign in a host (bats) and lethal in another species.