Cowra was incorrectly listed in a group of seven Local Government Areas (LGA) on Wednesday where six cases of the virus were identified, bringing the total number to 21 across WNSWLHD.

A WNSWLHD spokesperson said the Weddin LGA has had a positive detection to COVID-19, not Cowra and the incorrect listing was due to "human error".

All cases notified were diagnosed after travelling overseas or being in contact with a confirmed case.

In all cases, contacts have been followed up and tested where appropriate, and the people involved have either entered home isolation or have completed home isolation.

NSW Health wishes to thank all those individuals for their co-operation.

Any new case and their close contacts will similarly be asked to self-isolate unless hospitalisation is required.

Those affected are contacted every day to check that they are well.

All travellers returning or arriving from overseas must self-isolate for 14 days.

This applies to everyone, even if you have no symptoms.

Please follow the home isolation guidance.

NSW Health is continuing to trace and respond to cases as they are diagnosed to slow any spread of COVID-19 in the community.

To help protect the community people are asked to:

For advice and information about COVID-19 visit www.health.nsw.gov.au/Infectious/diseases/Pages/coronavirus.aspx