A 41-year-old member asked:
How did human immunodeficiency virus (hiv) evolve?
1 doctor answer
Dr. Martin Raff answered
55 years experience in Infectious Disease
Evolution: It came from a simian precursor transmitted to humans by one of several mechanisms. This virus mutates continuously and the form to which it mutates which is best capable of surviving under the circumstances is the one which will be reproduced and multiply within infected cells. Unless of course you are a creationist.
Answered on Nov 3, 2019
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