The case is from the Kempsey local government area and the source of their infection is under investigation.

Five other cases were reported on Monday.

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The North Coast Public Health Unit is currently investigating this case and contact tracing is underway, including any potential exposure venues of public concern.

There have been 43 cases reported in the MNCLHD since the beginning of the current NSW outbreak.

COVID-19 exposure sites are listed on the NSW Government website at www.nsw.gov.au/covid-19/stay-safe/case-locations/exposure-sites.

"We encourage you to regularly check the website as the list of venues of concern and relevant health advice is updated as new cases emerge and investigations continue," MNCLHD chief executive Stewart Dowrick said.

All close contacts are contacted and informed as part of normal contact tracing processes. They must get tested and isolate for 14 days, regardless of the result.

Casual contacts must immediately get tested and isolate until a negative result is received. If you receive a text from NSW Health, it is essential that you follow the health advice provided.

MNCLHD is urging residents to get tested even if they have had a test in recent days. If you test result is negative, please continue to monitor for symptoms and if any symptoms appear, get tested and isolate again.

There are 500 COVID-19 testing locations across NSW, many of which are open seven days a week. To find your nearest clinic visit www.nsw.gov.au/covid-19/stay-safe/testing/clinics or contact your GP.

Find available vaccination bookings at the Australian government's COVID-19 Vaccine Clinic Finder (previously Eligibility Checker), or you can also call Health Direct on 1800 571 155 for assistance to book.