 The infected (voiced by experimental musician Mike Patton and voice actor Fred Tatasciore) are the survivors' foes in "Left 4 Dead", and they appear to be partly inspired by the infected from several modern films, including "Dawn of the Dead", "28 Days Later", and "Quarantine".An important distinction from the former is that while the infected do resemble traditional undead zombies, they are, as cited in the game's manual, living humans infected with a rabies-like pathogen, very much like the infected in the latter two films.While they are never seen eating human flesh or brains, multiple 'survivors' who have been killed by the infected appear throughout the game, and appear to have been partially eaten.