This compares with Monday's figures of 23 deaths and 4,654 infections.
Some 54.7% of people in private households in England are likely to have tested positive for the antibodies in the week to March 14, along with 50.5% in Wales and 49.3% in Northern Ireland, according to the latest estimates from the Office for National Statistics (ONS).
This is the lowest number since the week ending October 16 and the first time the weekly death toll has fallen below 1,000 since the following week.
There were 963 deaths registered in the week ending 19 March where COVID-19 was mentioned on the death certificate, the ONS said.
So far, 30,151,287 people have received a first dose of a COVID-19 vaccine in the United Kingdom, and more than 4.3 million confirmed cases of the virus have been reported since the start of the pandemic.
A total of 150,116 deaths have now occurred in the United Kingdom where Covid-19 was mentioned on the death certificate.
The deaths were between December 19 and March 29 this year, with the majority being on or after March 25.
Prior to the two most recent weeks, the last time deaths had been below average was in the week to September 4.
In Wales, an estimated 79.2% of people aged 80 and over were likely to have tested positive for antibodies in the week to 14 March, along with 74% of people in Scotland.
While no deaths had been reported in London due to Covid-19, there were a further 19 coronavirus deaths reported across the United Kingdom yesterday. The nation has a Covid death toll of 5,506.
There were no further deaths reported by Public Health Wales.
The country also reported another 56 coronavirus-related deaths.
Though this PHE news is great, the government is still stressing the importance of the roadmap that was announced earlier this year, which includes people working from home where possible and minimising the number of journeys they take.