Hi – There is increasing evidence that the vaccine does reduce transmission – In April, Public Health England reported the results of a large study of COVID-19 transmission involving more than 365,000 households with a mix of vaccinated and unvaccinated members.

It found immunisation with either the Pfizer or AstraZeneca vaccine reduced the chance of onward virus transmission by 40-60%. This means that if someone became infected after being vaccinated, they were only around half as likely to pass their infection on to others compared to infected people who weren’t vaccinated.

However with the government themselves saying that it was lockdown rather than the vaccination programme that led to the reduction in cases in the UK, then I think you would have a difficult time following through with any legal action. If the person wears adequate PPE and maintains social distancing (which, let’s face it, we were telling them was safe following risk assessment during the pandemic) then I think they would have a strong case for arguing they are following safe practice – your responsibility is to have very clear policies on your expectations around risk assessment and following safe practice and making sure it is happening in practice. But, I imagine this one will be one to watch for some time to come.