Seven of the cases are from the Mid Coast, two are from Cessnock local government area and a further two are from Maitland.

A single case was diagnosed in the Newcastle local government area on Sunday.

Dr David Durrheim, Public Health Physician, Hunter New England Health said five were in isolation for their entire infectious period, while 10 were infectious in the community.

"Eleven cases are linked to known exposures or clusters, four are unlinked," he said.

"We urge anyone who is currently isolating in the community with COVID-19 to call for an ambulance should they experience a deterioration in their condition, including breathlessness and dizziness."

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Walk-up clinics for first, second and booster vaccinations are popping up across smaller villages in the New England North West.

Bookings encouraged via the Commonwealth Government's COVID-19 Vaccine Clinic Finder.

First and second doses are available for people aged 12 years and older, while people aged 18 years and older who received their second vaccination more than six months ago may receive their booster dose.

Pop-up clinics:

Glen Innes

Glen Innes Health Service, 94 Taylor Street

Saturday, November 27 and Saturday, December 18

9am - 2pm

Quirindi

Quirindi Ingall Centre (located next to the hospital)

Sunday, November 28

10am to 2pm

Inverell

Inverell Community Health, Swanbrook Road

Saturday, December 11

9am - 2pm

Bendemeer

87 Caroline Street

Monday, November 29

10am to 1pm

Somerton

Somerton Hall, corner Joshua Street and Scotland Road

Tuesday, November 30

9am to 12noon

Niangala

Niangala Community Hall, Foster Street

Thursday, December 2

1pm-3pm