Sorry, to clarify my last post, the proof of being free from TB is for people coming INTO UK FROM several countries, including from most of West Africa. No entry is permitted without this, and the aim is to prevent tuberculosis infecting residents here.
I think countries/public places/anywhere that people mix have the right to insist on vaccination proof in order to protect everybody. Covid is deadly, and even if one survives, one can be terribly weakened for a very long time (eg my poor sister)
My husband has been tested a third time for Covid at the school where he works. He is eagerly awaiting a call for his jab.