Fallout‘s Forced Evolutionary Virus, or FEV, is an artificial megavirus created by West-Tek’s NBC Division in the mid-2070s. It’s transmissible by injection, direct contact, or an aerosol solution.

Fallout just brought the Forced Evolutionary Virus (F.E.V.) into the TV storyand if you know the games, you know what that means: Super Mutants, secret experiments, and a terrifying link between Vault ...