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The number of people infected with coronavirus in the UK has risen by as much as two-thirds, the Office for National Statistics (ONS) says.
It estimates that around 100,000 people tested positive in the week to 29 May, or one in 660 people – up from 60,000 the previous week.
A growing proportion looked like they were the Delta variant, first detected in India, the ONS said.
Infections were rising most steeply in England and Wales.
A further 6,278
This post was originally posted on BBC News. Read the rest of the story at https://www.bbc.co.uk/news/health-57362508.