HIV has a very high mutation rate due to its inability to correct errors in DNA replication and it is very adaptable to its environment. Hence I wonder whether is it possible for it to mutate such that it becomes an airborne virus and what mutations was needed for it to occur. After all other viruses such as influenza have done so before. Furthermore from the virus point of view, doing so will allow it to be more successful evolutionary speaking since that would allow the virus to infect more people and hence reproduce itself more quickly. And what will be the consequence if it happens?