The Duchess of Edinburgh speaks to Amanda Pritchard, Chief Executive of NHS England as they attend at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Britain's Prince Edward, Duke of Edinburgh, Sophie, Duchess of Edinburgh attend the NHS anniversary ceremony at Westminster Abbey, London, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Britain's Prince Edward, Duke of Edinburgh, Sophie, Duchess of Edinburgh attend the NHS anniversary ceremony at Westminster Abbey, London, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

The Duchess of Edinburgh attends the NHS anniversary ceremony at Westminster Abbey, London, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

The Duchess of Edinburgh attends the NHS anniversary ceremony at Westminster Abbey, London, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

The Duchess of Edinburgh attends the NHS anniversary ceremony at Westminster Abbey, London, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

The George Cross which was presented to the National Health Service on show at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

The George Cross which was presented to the National Health Service on show at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

The Order of Service for the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

The George Cross which was presented to the National Health Service on show at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

The George Cross which was presented to the National Health Service on show at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

The NHS anniversary ceremony at Westminster Abbey, London, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Adele Roberts attends the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Guests at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Adele Roberts attends the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Zoe Williams attends the NHS anniversary ceremony at Westminster Abbey, London, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

British Labour Party leader Sir Keir Starmer speaks to Amanda Pritchard, Chief Executive of NHS England as they attend at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Zoe Williams attends the NHS anniversary ceremony at Westminster Abbey, London, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Amanda Pritchard, Chief Executive of NHS England at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

British Prime Minister Rishi Sunak arrives at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Guests at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Guests at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Guests at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

Amanda Pritchard, Chief Executive of NHS England at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

British Prime Minister Rishi Sunak speaks to Amanda Pritchard, Chief Executive of NHS England as they attend at the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

NHS staff members attend the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

NHS staff members attend the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

NHS staff members attend the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

NHS staff members attend the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

NHS staff members attend the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

NHS staff members attend the NHS anniversary ceremony at Westminster Abbey, London, Britain, as part of the health service's 75th anniversary celebrations. Picture date: Wednesday July 5, 2023. Jordan Pettitt/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak and his wife Akshata Murty visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where they took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

British Prime Minister Rishi Sunak visiting the Evelina Children's ward at St Thomas' hospital in Central London, Britain, where he took part in an NHS Big Tea Celebration to mark the 75th anniversary of the NHS. 4 July 2023. Jack Hill/Pool via REUTERS 

King Charles III meets staff and patients during a visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

Sheet music showing the piece played by the Scottish Fiddle Orchestra as King Charles III and Queen Camilla visit the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III meets staff and patients during a visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

Staff and patients wait to meet King Charles III and Queen Camilla during their visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III meets staff during a visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III meets staff during a visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III and Queen Camilla meet staff and patients during a visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III and Queen Camilla meet staff and patients during a visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III meets staff and patients during a visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III and Queen Camilla meet staff and patients during a visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

Queen Camilla speaks with patients during a visit to NHS Lothian's Medicine of the Elderly Meaningful Activity Centre at the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since the coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III and Queen Camilla during a visit to NHS Lothian's Medicine of the Elderly Meaningful Activity Centre at the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III speaks with patients during a visit to NHS Lothian's Medicine of the Elderly Meaningful Activity Centre at the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

Queen Camilla speaks with patients during a visit to NHS Lothian's Medicine of the Elderly Meaningful Activity Centre at the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since the coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III and Queen Camilla during a visit to NHS Lothian's Medicine of the Elderly Meaningful Activity Centre at the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III and Queen Camilla during a visit to NHS Lothian's Medicine of the Elderly Meaningful Activity Centre at the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III and Queen Camilla cut a commemorative cake during a visit to NHS Lothian's Medicine of the Elderly Meaningful Activity Centre at the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS 

King Charles III and Queen Camilla arrive for a visit to the Royal Infirmary of Edinburgh, Scotland, Britain, to celebrate 75 years of the NHS at NHS Lothian, as part of the first Holyrood Week since his coronation. Picture date: Tuesday July 4, 2023. Jane Barlow/Pool via REUTERS