The Transmission Of Hiv Aids Essay

1063 Words Oct 29th, 2015 5 Pages
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. This hypothesis states that various groups of SIV were transmitted to humans around 1940 or 1950. On a broader spectrum, the HIV-1 date of origin is 1931. However, it wasn’t until 1959, that the first known case of HIV was reported by a man in Kinashasa, Democratic Republic of Congo. HIV is thought to have come to the United States in the mid 1970’s, and it wasn’t until 1983 that scientists discovered that the HIV virus is what causes AIDS. (de Sousa et al., 2010)
So, how could humans have contracted this virus from non-human primates? 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…

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