User blog comment:Drayco90/Marvel vs. DC- Halloween Special: Carnage vs. Anton Arcane/@comment-4552610-20130121041221/@comment-2149911-20130121054758

Obviously it won't infect the Carnage symbiote (since it's being of another universe), but the host inside will be more subtle to the force of The Rot, Especially Cletus.

Also Las, The Un-Men are just as strong as the Carnage infectants.From what I read I seriously doubt they are stronger than the infecteds.