The UK's total Covid-19 death tally now stands at 91,470, with a further 33,355 new cases also reported over the last day, taking the total number of infections to nearly 3.5 million.
But the number of new cases over the last week was down around 22 percent, as a stringent lockdown announced earlier this month starts to have an effect.
Britain is currently gripped by its third and deadliest wave of the virus, blamed on a new strain believed to be highly infectious.
An estimated 12 percent of people in England had been infected with coronavirus by December last year, up from nine percent in November, according to official antibody data released Tuesday.
One in 10 people in Wales, one in 13 in Northern Ireland and one in 11 in Scotland were also estimated to have caught the virus, according analysis of random blood test results published by the Office for National Statistics (ONS).
Health chiefs have been warning intensive care units risk being overwhelmed by the surge in cases.
Overall mortality for the week ending January 8 was 45 percent higher than the five-year average, according to the ONS, although it cautioned that the data could be skewed by uneven reporting over the holiday period.
London, which has been hit particularly hard by the latest wave, recorded an 85 percent increase in deaths, compared to the historic average for the same week.
Cambridge University's Medical Research Council said last week it believed that 30 percent of the capital's population had been infected.
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