Watch this video! It’s very informative.
Here is an article on the subject that is also worth reading. Below is a piece from that article
During the seven decades of the Cold War, the American power elite was much more interested in a genocide of “communists”, of whatever color, wherever they might be found. Many weapons which might further this purpose were researched, including, apparently, an HIV-like virus. Consider this: On June 9, 1969, Dr. Donald M. MacArthur, Deputy Director, Research and Engineering, Department of Defense, testified before Congress:
Within the next 5 to 10 years, it would probably be possible to make a new infective microorganism which could differ in certain important aspects from any known disease-causing organisms. Most important of these is that it might be refractory [resistant] to the immunological and therapeutic processes upon which we depend to maintain our relative freedom from infectious disease. [Hearings before the House Subcommittee of the Committee on Appropriations, "Department of Defense Appropriations for 1970."]
Whether the United States actually developed such a microorganism and what it did with it has not been reported.