Almost 50,000 people have tested positive for Covid in the last 24-hour reporting period, the highest number since January 15.
In total, a further 48,553 lab-confirmed Covid-19 cases were recorded in the 24 hours to 9am on Thursday.
Government figures also show that a further 63 deaths within 28 days of a positive Covid test were recorded as of 9am on Thursday - bringing the UK death toll to 128,593.
Despite the high number of coronavirus cases reported on Thursday, deaths remain relatively low, with vaccines weakening the link between someone catching Covid and becoming seriously ill or dying.
Separate figures published by the Office for National Statistics show there have now been 154,000 deaths registered in the UK where Covid-19 was mentioned on the death certificate.
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There were 44,523 new positive cases reported in England and 44 deaths.
Scotland confirmed a further 2,086 Covid cases and 19 deaths.
There were 861 new Covid cases in Wales reported on Thursday and no deaths.
A further 1,083 Covid cases were confirmed on Thursday and no deaths have been reported.