Michael Flatley may never be able to dance again due to a virus attacking his immune system, with more details emerging about the extent of his illness.

The Riverdance star's spokesperson Geraldine Roche told IMDB: "he is very frustrated that he has been in hospital so long. He is incredibly motivated and driven and wants to get back on stage as soon as possible. But so far doctors have been unable to give him a firm promise on what the future holds and whether he'll ever be able to dance again. He has been inundated with messages of support."

It was also reported that a friend of Flatley's who visited in hospital claimed that he "was having difficulty breathing owing to a build up of fluid on his lungs".