They were present at Orange Health Service and all close contacts have been identified, self-isolated and undergone testing.

All have returned a negative result.

Anyone who attended Orange Central Square Shopping Centre on Saturday December 19 from 4.05pm to 4.15pm is considered a casual contact who should monitor for symptoms and get tested immediately and isolate if they appear.

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They should self-isolate until they receive their result.

Additional testing capacity will be made available at the Laverty Drive-through service at the Orange Showground from Tuesday afternoon, and at Orange Hospital's Fever Clinic from 10am Wednesday.

Testing is also available at the Western Primary Health Network's Respiratory Clinic at the Bloomfield Medical Centre on Forest Road on weekdays.

This case, which is not included in the NSW numbers, presented for testing in Victoria on December 20 and the positive result was received on December 21.

They have been isolating since their return to Victoria.

The family members of this case in Sydney are all in isolation and have tested negative to date.

Symptoms associated with COVID-19 include fever, cough, sore/scratchy throat, shortness of breath, runny nose, loss of taste or smell.

For advice or questions about COVID-19, call the National Coronavirus Health Information Line on 1800 020 080. If translating or interpreting services are needed, call 131 450.

For information on testing locations and COVID-19 advice, go to www.nsw.gov.au/covid-19/how-to-protect-yourself-and-others/clinics.