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what started the zombie apocalypse in the walking dead

The Walking Dead apocalypse is implied to have started from a virus created in a laboratory in France, often called the Wildfire virus in the franchise. Later spinoff clues suggest the outbreak began when that research escaped containment rather than from a natural event.

What is known

  • The strongest on-screen clue points to a French biomedical facility tied to the outbreak’s origin.
  • The story does not give a single fully confirmed, official “one-sentence” cause for every version of the franchise, but the most accepted explanation is a lab-created pathogen that spread globally.
  • Earlier creator comments also floated more sci-fi ideas, but the TV canon leaned into the lab-origin explanation instead.

In plain terms

The zombie apocalypse in The Walking Dead likely started because a man- made virus got loose, not because of magic or a random natural disaster.

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