Covid-19 cases are "rising exponentially" across England driven by younger and mostly unvaccinated age groups, according to scientists tracking the epidemic.
A study commissioned by the Government found that infections have increased 50% between 3 May and 7 June, coinciding with the rise of the Delta coronavirus variant which was first detected in India and is now dominant in the UK.
Data from nearly 110,000 swab tests carried out across England between 20 May and 7 June suggests Covid-19 cases are doubling every 11 days, with the highest prevalence in the northwest and one in 670 people infected.
The data comes as MPs approved the extension of coronavirus restrictions in England until 19 July, although prime minister Boris Johnson suffered