It would not. Certainly you can't use that organism inside a Human body. Your immune system would object - violently.

Another problem about HIV is that there are so few Virus particles "floating around" at any time, which (among other things) makes it challenging to fight with vaccines or pharmaceutics. And all Viruses are hard to get to when they are inside a cell, which is why the immune system mainly uses cell targeting mechanisms to get rid of viral infections, rather than the "humoral" defense of free floating antibodies (simplifying by a lot here).