In the ending "news dialog" there's something in there about a mutated meningitis strain, I'm guessing it'd be viral meningitis. But it all hearkens back to what I was saying this summer after the movie came out. What is "lethal enough"? The flu is potentially lethal, hell, a cold is under the right (although narrow) circumstances. And, yeah, not sure what the guy with the gimped leg was doing to turn away the zombies since Segen's amputated hand wasn't helping her any.