How long would it take for all the Zombies to die off?

Hypothetically, if you start with one infected person biting one other person, and then each new infected person bites one more person the following day, the exponential growth would result in about 1.2 billion people infected after 30 days. read more

Zombies will still remain in large numbers in some places, surviving humans might be wiped out by the zombies in some regions, but overall humanity has been through the worst stages and now has a chance to rebound while the zombies will continue to die off and become less capable of infecting new people (the rotting of muscle tissue will make most of them immobile, for example). read more

Zombies in the show should definitely die out with time. It's entirely unrealistic that they wouldn't (Assuming they don't reproduce). The virus takes over a human body, hence no matter how potent, it still needs to fulfill the living requirements of a human to keep control over its husk. read more