On the latest UKHSA Vaccine Surveillance report..... "Unadjusted vaccine effectiveness based on the raw reported infection rates is still negative for all aged between 18 and 70 (see above). In fact, it’s gone negative for the first time in 18-29 year-olds, down to minus-10.1%, after a sharp drop in the last week. A negative vaccine effectiveness means the infection rate per 100,000 people is higher in the vaccinated than the unvaccinated. "