H stands for human, implying that this virus infects only humans
I think the implication of using the word "Human" is not because it can infect human exclusively but rather that particular strain of virus can be found in humans. HIV itself derived from SIV (Simian Immunodeficiency Virus) which has the same structure with HIV type 2.
Yes, I also know about the different strains in humans, I just wanted laymen to understand.
Thanks for the observation.
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