There had been five positive cases in the Alnwick area in the week up to September 30.
Only five wards across the rest of the county have recorded higher numbers, with Hirst ward in Ashington topping the list with 31 positive cases in the previous week.
By contrast, the number of positive cases across large swathes of north and west Northumberland remains very low.
The county-wide infection rate stands at 155.5 per 100,000.
Here are the number of positive coronavirus cases by ward in the Berwick constituency….