Watch: Prince Philip's treatment 'hurts at moments', says Duchess of Cornwall
Prince Philip's condition is "slightly improving", his daughter-in-law the Duchess of Cornwall has revealed, after he spent his 15th night in hospital.
Camilla gave a brief update on the Duke of Edinburgh's health while visiting a vaccination centre inside St Paul's Church in Croydon, south London.
She said: "We heard today that he’s slightly improving. So, that’s very good news. We’ll keep our fingers crossed."
The 99-year-old went into hospital on 16 February for treatment for an infection.
He was initially treated at King Edward VII's Hospital in London, but was moved to St Bartholomew’s Hospital on Monday for treatment for a pre-existing heart condition.
Buckingham Palace said he is "comfortable and is responding to treatment but is expected to remain in hospital until at least the end of the week".
Watch: Duke of Edinburgh moved to different hospital to continue treatment
Philip, who is set to celebrate his 100th birthday in June, is known for his "no fuss" attitude, and the admission to the hospital was said to be out of an "abundance of caution".
The Queen has been carrying on with engagements despite her husband's long stay in hospital, including a number of video engagements and phone calls.
She spoke to chancellor Rishi Sunak on Tuesday ahead of his budget, which was revealed in the House of Commons on Wednesday.
And she unveiled a statue of herself in Australia, with the palace releasing a cheery call with the governor of South Australia in which she joked: "I would think possibly it might be quite alarming to suddenly see it out of the window – you’d think, gracious, has she arrived unexpectedly?"
The stay in hospital has become Philip's longest admission, as he reached 14 nights on Tuesday.
He was said to be in "good spirits" when he first went to hospital, and walked in unaided.
His transfer from King Edward VII's to St Bart's was shielded from media view by umbrellas as he was transferred.
Prince Charles visited his father when he was in King Edward VII's, but the visiting rules are said to be much stricter at St Bart's and so Philip may not be able to receive anyone while he is there.
Visitors can only go to St Bart's in person if the patient is at the end of their life, a child, having a baby, or lacks capacity.
The duke was last in hospital just before Christmas in 2019, when he was taken in on his doctor's advice as a precaution.
He was there for four days before leaving in time for Christmas at Sandringham.
He had a hip operation in September 2018 at the same hospital and was there for 10 days. It was a planned operation.
In June 2017, he spent three days in the hospital with an infection.
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