Welcome To The Zombie World - Zombie Fiction Series by Steven Farkas

A collection of five short zombie stories and a zombie novella. The short stories include a live zombie Halloween decoration, burnt zombies from a comet take over the world, a mall Santa turns into a zombie, three people find themselves under siege by zombies in a small farmhouse, and bad meat turns the world into zombies.
The novella is set in a youth summer camp where the children become zombies led my a strange man who seems to be a religious icon but hides a bigger secret. The camp children become zombies and feast upon the counselors, the local police and eventually the whole town.