Alana nodded, continuing on down the stairs, and glanced back at the question. "I... I have no idea. Granted, I'm a fire fighter, not an infectious disease specialist, but I've never heard of anything even remotely like this... for it to be spreading so fast..." she said, shaking her head. Before too long they were back down to the street level, but as Alana pulled open the door to get out of the stairwell, she found herself looking into a lobby with about a dozen walkers in it. There was more blood smeared across the floor now, and she closed the door quickly, though instead of slamming was careful closing it the last inch or so. "It's full of them..." she whispered, "People covered in blood... maybe we can get out a window from the first floor, down into the parking lot... it's either that or we make a run for the front door..."