Blair said: 'In the end, you need the data: you need to know who’s been vaccinated and who hasn’t been.'
The former cabinet minister once claimed Tory MPs did not need to wear masks due to their 'convivial spirit'.
New guidance on face masks has been issued as the XBB.1.5 COVID variant spreads in the US and Europe.
The World Health Organization confirmed the XXB.1.5 COVID variant has been detected in 25 countries so far.
Spain has become the latest to introduce testing requirements for visitors from China, following countries including the US, India, Italy, South Korea and Taiwan.
Health experts are not ruling out a link between the rise in strep A cases and the end of coronavirus lockdown measures.
Tourists are trapped in the park until they present a negative test as part of strict coronavirus prevention measures.
The World Health Organization has warned COVID infections are increasing in Europe at the same time flu cases were expected to rise.
'The Only Fools And Horses' star revealed his face with covered in carpet burns after he was left rolling on the floor like a "walrus".