Boris Johnson was last night urged to publish clear evidence of the Covid data he used to cancel Christmas for millions.
The Prime Minister has warned the new variant of coronavirus may be up to 70 per cent more transmissible than previous strains and could overwhelm the NHS.
But last night one scientist demanded greater transparency over the number that shut down swathes of the UK.
Carl Heneghan, Professor of Evidence Based Medicine at Oxford University s Nuffield Department of Primary Care, expressed scepticism over the 70 per cent figure.
Carl Heneghan, Professor of Evidence Based Medicine at Oxford University s Nuffield Department of Primary Care, said it was too early to draw such an inference