(FILES) A picture taken on November 28, 2003 shows former South African President Nelson Mandela addressing a press conference in front of his former prison cell on Robben Island, off Cape Town. Respiratory infections are common among elderly people, a medical expert said on December 11, 2012 as the South Africa announced that Nelson Mandela, 94, was being treated for a recurring lung infection.During his incarceration he worked in a limestone quarry for 13 years on Robben Island off the Cape Town coast, which may have affected his health in later life. AFP PHOTO/ANNA ZIEMINSKI
AFP - ANNA ZIEMINSKI