Four members of an Armidale family now have COVID-19, as testing was ramped up in the city this week.
The first two cases, which were revealed earlier this week, were from the same family and household, and had been linked to a known active case in Tamworth.
The third case was confirmed on Wednesday, and the fourth on Thursday.
Drive-through COVID-19 testing has resumed at Armidale with a Laverty Pathology clinic now operational at the Armidale Showground.
Meanwhile, Tamworth has recorded 11 new cases of COVID-19 and Tamworth Public School has been closed for deep cleaning after it was added to the list of exposure sites.
Four cases are from East Tamworth, two from South Tamworth, two from West Tamworth, one from Oxley Vale, one from Warral and one from Tamworth.
The spike in cases comes as Tamworth Public School announced a member of the school community tested positive on Wednesday night.
It comes as 79 new cases were recorded across the Hunter New England Health district, 24 cases were in isolation for their entire infectious period, 41 were infectious in the community, and 14 are still under investigation.
Fragments of COVID-19 have been detected in sewage at Barabba and Uralla, where there are currently no known cases.
Health authorities have urged residents to get tested if they experience any symptoms.
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