BA does not control how their crews are vaccinated, or not. Vaccination is not compulsory in the UK. Each crew member has made their own choice. But I would imagine as intelligent and responsible persons, all will have been offered the jab by our NHS, and the vast majority will have been fully vaccinated by now.
The 4 crew members dying shortly after a c19 jab report, is unsubstantiated anti-vaccination on-line rubbish.
The medical data on the blood clots risk is many magnitudes less than the risk of the Birth Control Pill. . Haven’t seen much evidence of that being banned worldwide.