Coventry nurse amongst health workers 'honoured' to play role in Queen's funeral.
May Parsons delivered the first ever Covid-19 jab outside of a clinical trial.
Health workers and volunteers have described how they are "honoured" to play a role in the Queen's funeral.
Some will march in the funeral procession with the Queen's coffin as part of the Civilian Services Contingent.
Among them will be May Parsons, the nurse who delivered the first ever Covid-19 jab outside of a clinical trial.
Ms Parsons, who is a modern matron for respiratory services at University Hospitals Coventry and Warwickshire Trust, delivered the vaccine to Maggie Keenan on December 8 2020.
She met the Queen in July as the monarch awarded the NHS the George Cross - one of the last ceremonial medal presentations the Queen took part in.
Ms Parsons, along with frontline workers from Scotland, Wales and Northern Ireland and NHS England chief executive Amanda Pritchard, accepted the award on behalf of the institution at a small ceremony at Windsor Castle.
Just two months before she died, the Queen was "full of life and humorous", Ms Parsons said.
She told the PA news agency: "She was so lovely, she was so funny. She asked me what I was doing and I told her I was managing the Covid wards in my trust and I was delivering Covid vaccinations.
"Then (NHS chief executive) Amanda Pritchard said: 'She doesn't just deliver jabs, she gave the world's first ever jab'.
"Then she quipped with: 'Are you still alive?' - obviously imagine how run ragged we were during the pandemic.
"She was so full of life and humorous - her sense of humour was top notch.
"I was so nervous but she made me feel at home and at ease - she was telling us not to look so glum in the photos.
"In between the shots she said: 'Don't look so miserable!'
"It was such a special time."
She added: "To have those moments with her made her passing more painful.
"There are more than a million people in the NHS to represent so it's an honour and a privilege to represent the wonderful people of the NHS at the funeral."
Since the first Covid jab was delivered, the NHS in England has administered more than 127 million doses.
In the first week of the autumn booster campaign, the service delivered almost three quarters of a million jabs.
More than 44.5 million people in England have had at least one dose - including more than 94% of adults.
Hundreds of volunteers from St John Ambulance will be providing medical support across London and Windsor.
The charity also played a key role to support the Covid-19 vaccine programme.