UK's Prince Philip 'slightly improving', Duchess Camilla says

View of St Bartholomew's Hospital in London

LONDON (Reuters) - Britain's Prince Philip, the 99-year-old husband of Queen Elizabeth who is in hospital for tests for a heart condition and treatment for an infection, is "slightly improving", Camilla, the Duchess of Cornwall said on Wednesday.

Philip, the Duke of Edinburgh, has been in hospital for over two weeks since he was admitted having felt unwell, and on Monday moved hospitals to one specialising in cardiac treatment, for tests and observation for a pre-existing heart condition.

On a tour of a vaccination centre in south London, Camilla, the wife of heir-to-the-throne Prince Charles, told a volunteer the Duke was "slightly improving" and that "we keep our fingers crossed".

(Reporting by Michael Holden, editing by Estelle Shirbon)