In the zombie comedy film Zombieland there is a very unique type of Zombies. These zombies are said to have started out as normal people, until a man (who the movie's main character, Columbus refers to has "patient zero") ate a contaminated hamburger at a resturant/gas station called "Gas n Gulp", made out of meat from cattle with the most advanced cases of mad cow disease. The "mad cow burger" infected the man and mutated the disease into "mad zombie disease", a disease which gives the victim a raging fever, a swollen brain, green skin, takes away their speech ability, and makes them into cannibals while turning their blood black. The disease spreads across America and infects almost everyone in just two months, leaving only a few people left alive to fend for themselves. The movie follow