what is a voodoo ceremony

http://www.africanmagick.com
Although Hollywood has taken over the idea of the zombie there is some truth in its roots. In 1983 the anthropologist Wade Davis discoveed tetrodotoxin as a key ingredient in a zombification powder able to temporarily 'kill' a person and bring them back to life. An actual victim of zombification, Clairvius Narcisse, lead to the discovery.