FILE - In this Tuesday, Dec. 18, 2012 file photo, Britain's Queen Elizabeth II looks up and waves to members of staff of The Foreign and Commonwealth Office as she ends an official visit which is part of her Jubilee celebrations in London. Queen Elizabeth has been taken to the King Edward VII hospital in central London suffering from gastroenteritis, Sunday, March 3, 2013. A palace spokesman said she was expected to stay in hospital for two days and all engagements for this week will be either postponed or cancelled.(AP Photo/Alastair Grant Pool, file)