Symptoms after vaccine

He said long Covid clinics with specialist doctors were needed "urgently" despite the expense, and numbers of long Covid sufferers were likely to be underestimated.

"One group of people where I think that is particularly the case is people who have developed long Covid-type symptoms after having the Covid vaccine," Dr Deans added.

"While the Covid vaccine has saved lots of lives and at population level has been a good thing, we're now uncovering evidence that some people are developing this same kind of presentation - long Covid - after the vaccine, and it seems that has triggered it."