HIV: People with rare natural ability to fight AIDS virus have potent "killer" cells that recognise and destroy infection

People with rare natural ability to fight AIDS virus have potent 'killer' cells that recognise and destroy infection ‎ Study has shown scientists how to find and measure 'good cells' that can recognise and kill infected cells, but they still do not know how to generate them | UPDATED: 16:13 GMT, 11 June 2012 It has long been known that a tiny minority of people infected with HIV have a natural ability to fight off the deadly AIDS virus.