Murrumbidgee Local Health District chief executive Jill Ludford said the health organisation would a new site at Wagga's Equex Centre, which will not require appointments.

"In recent days we have seen the demand for testing really go up very rapidly across our region, and this is a really great thing and I thank people for coming forward as soon as they have symptoms, but we need to respond," she said.

"I'm pleased to announce that we will be opening a new drive-through testing clinic in Wagga where we have seen some delays in testing at our four existing testing centres.

"The good news is that at the Equex Centre, you will not need an appointment...to make sure we fill the gaps where we don't have testing capability."

The new site will start taking its first tests on Thursday and will be open every day from 10am to 6pm.

People who use the new testing site will not be able to get out of their cars while waiting or being tested, and staff at the site will not be able to enter any vehicles.

For those reasons, the MLHD has recommended that people seeking to get children tested use Wagga's other testing sites instead.

"People who go to our new drive-through at Equex Centre will have their samples tested here at the Wagga pathology where we know we have good turnaround times," Ms Ludford said.

Ms Ludford said the new testing site would remain open as long as it was needed.

"Please be patient and work with us over the coming days as we deploy staff from regular duties to testing in order to keep you safe," she said.

The Murray Street testing will also make changes to accommodate priority lines for workers who need to have regular surveillance testing every few days, as well as for elderly people and mothers.

"We have deployed a specialised testing van [that] will be on the road [on Thursday] up to Batlow and Tumbarumba and out to Narrandera where people have less access to testing," Ms Ludford said.

In other news

NSW Premier Gladys Berejiklian on Wednesday revealed a "huge increase" in new COVID-19 cases, breaking the previous record set on Sunday by a margin of more than 150.

Ms Berejiklian urged every NSW resident not to leave their homes unless absolutely necessary.

"You have to assume, no matter where you are in the state, that every time you set foot out of your door that you have the virus and everyone you might have contact with has the virus," she said.

Ms Ludford said increased testing and vaccinations were the two main strategies to reduce the risk of an outbreak.

"We have had a fantastic increase in the number of people coming forward for vaccination and it's been a little bit up and down with the allocation and re-allocation of vaccines but they're back and it's all systems go for us" Ms Ludford said.

The MLHD is also targeting more remote areas with lower vaccination rates.

"This is really important, particularly where we have Aboriginal elders coming forward for assistance or we have towns where vaccination is not available through GPs or pharmacies," Ms Ludford said.

"In the coming days and weeks we will be going to Narrandera to work with the council and Aboriginal elders in that community, and also up to Hillston where they have less access to vaccinations than other areas."

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