Origins of a Zombie A zombie myth had first appeared in Haiti during the 17th and 18th century, when the country was ruled by France, which took slaves from Africa to work on the sugar plantations. MAny Haitians believed that if they committed suicide they would be released back to lan Guinee, literally guinea, or Africa in general, which is a kind of afterlife where they will be free. As the Revolution in Haiti and French colonialism ended in 1804 the zombie myth became a part of the folklore. The myth evolved and was folded into the Voodoo religion, with Haitians believing zombies were corpses reanimated by shamans and voodoo priests(Mariani). A shaman is one who is believed who has access and influence in, the world of good and evil spirits. …show more content…
Encounters between zombies and live humans can result in the human becoming a zombie (hence the terms in - S Z in dSdtand S Z in dZdt) or the zombie becoming dead ( hence S Z and -S Z). The result is unfortunate unless both S and R start out at 0, the whole population must turn into zombies in the limit as t .
The population is fixed so S + I + R = 1. The disease spreads through the interaction of susceptible and infected. We assume that only a fraction of this interaction causes the disease to pass from an individual ( I) to a susceptible individual (S.) So the rate of change of S is proportional to the product of S and I. We assume that the individuals recover at a rate of β so the period of infection is 1 days. The only way a person can leave the susceptible β group is to become infected. The only way a person can leave the infected group is to become recovered. Once a person is recovered, the person is no longer susceptible and is immune. Age, sex, race and social status do not affect the probability of a person being affected. There is no inherited immunity at this time. The people of the population mix