Descriptions of zombies date back to the 1500s. 3 Haitian zombies are probably the best described, often thought to be controlled by practitioners of voodoo. 4 They may have been created via a neurotoxin, typically described as tetrodotoxin, which puts the victim in a sleep-like state. 5 These voodoo or chemical zombies seem to be unrelated to the current wave of epidemics, which began with the first documented outbreak in 1968...