Ministers have formally threatened mandatory vaccination for care home workers after new figures showed that just half of facilities pass the safety threshold. On Wednesday, the Government announced provisional plans to force care homes to include a requirement to be vaccinated in contracts with staff. The move, subject to a five-week consultation, would apply to all workers in homes for the elderly other than those who can prove an exemption. It comes as the Department for Health and Social Care said just 53 per cent of older adult homes in England currently have a staff vaccination rate of 80 per cent and a resident vaccination rate of 90 per cent. The thresholds are the minimum levels of protection advised by the Scientific Advisory Group for Emergencies (Sage) to suppress Covid outbreaks. It means 150,000 vulnerable people are currently living in homes with unsafe levels of vaccination. Meanwhile, the staff vaccination rate is below 80 per cent in 89 local authority areas – more than half – including all 32 of London's boroughs. Within these are 27 local authority areas with a staff vaccination rate below 70 per cent. Matt Hancock, the Health Secretary, said: "Older people living in care homes are most at risk of suffering serious consequences of Covid-19, and we have seen the grave effects the virus has had on this group.