How does the virus go underground? If it was airborne, wouldn't it go outside of raccoon city? Airborne cannot go underground. How does everyone in Raccoon City become infected? I understand lickers escaped from the hive that were remaining from the first movie. But they would not infect anyone... And I dont think the airborne virus got out... also, this is not world war z. I don't think it went from one bite victim to the next in 2 days to overrun the city.