new variants. The Health Secretary added: "Our vaccination programme is bringing back our freedom, but the biggest risk to that progress is the risk posed by a new variant.”The Health Secretary said the government had the “first concrete evidence” of how vaccines reduce transmission of Covid-19 within households.The latest data looking at people who had been given one dose of a vaccine found they were up to 50 per cent less likely to pass on the disease to someone in their household, Hancock told a press conference.According to the Department for Health and Social Care the UK had given out more than 47.5 million vaccine doses so far.Deputy chief medical officer Jonathan Van Tam said the third wave of coronavirus had waned because of the.