I'm trying to recall the name of a zombie movie I saw a couple years ago. I can only remember snippets, but I remember that the people who succumbed to the (airborne) disease would show symptoms.
In one scene, a character was laying dead on the floor and then a couple minutes went by and she opened her eyes and looked at the person next to her and then attacked.
I also remember a scene in an apartment building a zombie man was in an apartment and the character was on the hallway and the zombie looked opened the door and chased him.
I also remember they had to make it to the beach because they believed the winds there would hinder the disease.