Anyone any idea where this change in the rules came from ?
https://www.traveloffpath.com/uk-to-...rent-vaccines/
"According to the British government, in order to be fully vaccinated a traveler must have had two vaccines from the same brand, which means those who have mixed two different types of vaccine – an act that is growing in popularity in some parts of the world – will not be considered as fully vaccinated in the UK."
It appears to be manifestly stupid.