These worrying heat maps reveal how and where the new, more infectious variant of Covid-19 has been spreading out of control in the UK.
They were released as one of the Government's top scientific advisers warned on Wednesday that the "sobering" impact of household mixing during the Christmas is still to come as NHS hospitals in England currently treat a record number of virus patients.
A further 981 deaths on Wednesday was the highest daily total of the second wave. Britain's coronavirus infection rate has doubled over the last two weeks, and regional rates are highest in London and the South East, where the new variant is fuelling a winter surge in cases.