According to the latest ONS figures, over one million people were estimated to be suffering from 'Long COVID' in the UK in the four weeks ending 6 March.
As this chart shows, while 420 thousand say that this does not restrict them in their daily activities, 674 thousand are experiencing some degree of problems in this regard.
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Note that these figures represent symptoms "as experienced by study participants, rather than clinically diagnosed ongoing symptomatic COVID-19 or post-COVID-19 syndrome."
The source adds that while "there is no universally agreed definition of long COVID, it covers a broad range of symptoms such as fatigue, muscle pain, and difficulty concentrating."