Investigations into the second case, and two Parkes cases detected in the same period, continue.

Mr McLachlan advises it can take anything from 12 to 72 hours for venues of concern to be added to the NSW Health website, depending on the complexity of the case interviews and investigations.

Two more cases of Covid-19 have been detected in Forbes, Deputy Premier John Barilaro has announced at at the Premier's Monday morning press briefing.

It is not quite a week since Forbes' first case of the pandemic virus was detected.

So far Forbes has only had one venue of concern highlighted, Bunnings between 10.30 and 11.05am on Saturday August 21.

No new venues of concern have been announced since the announcement of Forbes' first case.

Western NSW Local Health District Chief Executive Scott McLachlan has explained that potential exposure sites would not be made public if contact tracers were confident they had identified and reached every person who had been there.

As an example, he said, they would not announce a service station attended late at night when they could confirm with CCTV footage that nobody else was there.

"Our contact tracing teams are working around the clock to make sure we notify everyone who may have been exposed as quickly as possible, to keep them and the community safe," Mr McLachlan said.

"Our list of venues of concern is being updated all the time as more are identified and there is a risk confirmed, so keep a close on that."

Tragically, the region has also recorded its first death with Premier Gladys Berejiklian reporting a man in his 50s had passed away in Dubbo overnight. He did have underlying health concerns.

We too send our condolences to his family and friends.