One has to love Army efficiency. If it can’t be cured or innoculated against, it has to be killed.
In the movie, Carlisle’s character is actually able to use his keypass to get into a highly secure military quarantine area. He does this looking for his wife. He has his reunion, gives her a big, sloppy kiss, gets infected and then hell breaks loose.
Sorry, civilians that were rescued from a super-virus and put into a quarantine area don’t get access to highly secure military areas.