In Resident Evil 5 are they zombies or Las Plagas

they are plagas & they are called"Majini"which means "evil spirit"
There are only two places where Zombies are present and the zombies can't hurt you they can only hold you still for a moment. the one place is on the convier belt in the missile area. The other is only in the DLC Lost in Nightmares The enemies that can hurt you are not zombies they are a parasite called type 2 Las Plagas, which infect their host by forcing a mature Plaga into someone orally by another infected person, while type 1 Las Plagas is injected into the bloodstream while still an egg