Delaney previously praised the “NHS nurses and doctors and the home carers and charity workers who helped our family survive Henry’s illness”, insisting that they “will be my heroes until the day I die”.

He added: “If you’d like to help other families in the UK with very sick children, please make a donation to Rainbow Trust or Noah’s Ark in Henry’s name or in the name of someone you love. Our family would be in much worse shape right now if it weren’t for them.

“I would also urge you to take concrete and sustained action to support the NHS, however you can. Do not take it for granted.”

Images: Rex Features

Catastrophe’s Rob Delaney opens up about his first Christmas without his son