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Thread: If HIV came from SIV, then where did SIV come from?

  1. #1 If HIV came from SIV, then where did SIV come from? 
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    Very simple question. The hypothesis is now that HIV is a zoonosis of SIV, and the question "where did HIV come from?" is often answered in such a manner, without addressing the origin of SIV.

    So, here is my question: where did SIV come from?


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  3. #2  
    Forum Cosmic Wizard
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    It was in wild apes. That was why it was called Simian Immunodeficiency Virus. Human Immunodeficiency Virus seems to be a mutation of a strain of Simian Immunodeficiency Virus found in Chimps.


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  4. #3  
    Brassica oleracea Strange's Avatar
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    And if you mean the more basic, where do viruses come from, then the answer is that they evolved. But the details are unclear:
    Origin of Viruses | Learn Science at Scitable
    ei incumbit probatio qui dicit, non qui negat
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