Self-employed Adrian Walker, from Grantham, Lincolnshire, had the jab in February 2021 to 'protect others', including vulnerable children he helped take to school.

But just two weeks later the previously healthy marathon runner was fighting for his life, admitted to hospital with multiple blood clots in his lungs and bowel.

The ordeal left him struggling with short-term memory, breathlessness and fatigue.

Mr Walker was diagnosed with vaccine-induced immune thrombotic thrombocytopenia (VITT) in late March 2021, with medics confirming it was a result of the AstraZeneca vaccine.”