Data from Public Health England, supplemented by the ONS and published by Northumberland County Council shows the Covid-19 rate was 266 per 100,000 on January 18.
There were 852 positive cases in the week up to that date, an increase of 8.67% on the previous week.
Here are the wards with the highest Covid-19 rates.
Here are the wards with the highest Covid-19 rates.
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