Oh yeah? Well do MHA characters have a resistance to a zombie virus?
https://marvel.fandom.com/wiki/Hunger_(Virus)
>The infected became an undead flesh eater but retained their intelligence, personality and special abilities. The virus also appears to mostly target superhumans. It caused a hunger in the host, a hunger which could only be sated by ingesting the flesh of the living. It has a 100% infection rate.