Well; a company would be in breach of their very own health and safety policy for knowingly putting you in harms way and at an a risk of death.

I’d submit all the scientific evidence of harm with my refusal, placing them on notice of a workplace health and safety issue - the shot.

Many countries then have employment law that allows you to sue your employer for personal injury and for detrimental treatment for raising health and safety concerns with the employer;

How corrupt the courts are now it may not go far.