awesome !
I hate Horror film but this series is surely not that style.
It's more like "i'm a legend" where the zombies/infected are not necessary the unnamed ennemy. You've got pity for their misery. (half-women scene, mother scene etc ...)
Some first scene of the film was really stressfull, somethings i'm not fond of, like the stairs part even if i've found cool the fact you've seen what happened in the hospital.