The first mass vaccination centres are planned for sites in major cities including Leeds, Hull and London.

They will be supported by hundreds of mobile vaccination units dotted nationwide, while roving teams will visit care homes and vulnerable Brits.

GPs and pharmacists will also be asked to dole out the jab to millions of people – with roll out set to take between three to six months.

One of the vaccine frontrunners includes the treatment developed by Oxford University, with millions of doses already stockpiled.

But with patients needing two jabs, 28 days apart, inoculating vast numbers of Brits is set to be a logistical nightmare.