Nice, but glitch?
Great 'zombie' trivia but i think the question regarding "check for bites" has a glitch - all of them lead to death. =(
Rather than start over every time you get the answer wrong, you should have a cumulative score and based on that score, people can die in different ways or actually survive. Adds more work but the game would be more enjoyable that way.
Good start. Keep it up.