Exactly the question that ran through my head.The Queen and Prince Philip have been vaccinated, which vaccine they were given has not be released. If you had to guess, which vaccine do you all think they had?
Covid-19: Queen and Prince Philip receive vaccinations - BBC News
It wasn't 100% clear when they were vaccinated but, if this week, I put my half-crown on Oxford-AstraZenica British vaccine. But it could just be that it was announced now when no-one will actually know for sure - but was done a little while ago with Pfizer/BioNTech.