Where zombies come from 

There are a lot of different ways people say how zombies were created from aliens to infected insects but i think my favorite is that we made the viris and unlashed it on to the urban popules to see the effects.

It was a normal day in a top secret GENTECK lab in New york. After years of reserch they had finally found a virus that could mutate the body to make it stronger faster but as in in some zombie movies it went horably wrong it infected the group of scientists that were working on the project but it wasn't let out to the  public for fear of riots and panic. So they secretly let out small strains of the virus into cites around the country but they  couldn't control it and it spread across the US zombies invaded all cites and only small groups of  survivors live in the wreaks of human  civilization.