Epidemic Theory Of HIV

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The question of when the HIV virus originated is often asked, but unanswered. There are three different theories about when the transmission of HIV came about. (Hillis, D.M., 2000) The first theory, called Transmission Early Hypothesis suggests humans contracted HIV in the early 1900’s. This theory goes on to say that a small population of humans had it, but it stayed isolated within this population until the 1930’s when political changes arose in Africa and caused the virus to spread between populations. The second theory is called the Transmission Epidemic Hypothesis. This is the idea that HIV was spread from non-human primates to humans in 1930, and immediately began to spread. The last theory is called Parallel Late Transmission Hypothesis. …show more content…
The explanation is simple. Chimpanzees are often killed by hunters in Africa and considered “bushmeat”. It is likely that during these encounters is when some of the first cross-species transmission of the SIV virus in humans took place. Blood to blood exposure between these two primates would result in the human contracting the HIV virus. (Sharp P.M., et al. 2001) Another possible theory explaining how humans contracted HIV involves eating the meat of the slaughtered primate. If hunters were to eat the infected chimpanzee’s raw, contaminated meat, the virus would then be introduced to his system. These simple interactions are to blame for the ongoing spread of HIV and …show more content…
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