The study said it was taking longer for HIV infection to cause Aids and that the changes in the virus may help efforts to contain the pandemic. Some virologists suggest the virus may eventually become "almost harmless" as it continues to evolve.
HIV evolving 'into milder form'
2 December 2014
HIV is evolving to become less deadly and less infectious, according to a major scientific study. The team at the University of Oxford, lead by Prof Philip Goulder, shows the virus is being "watered down" as it adapts to our immune systems.