The Murrumbidgee Local Health District [MLHD] on Thursday afternoon confirmed the patients had been sent on for specialised care.

"A child under 10 years of age and a baby under 12 months of age have been transferred to a specialist children's hospital for treatment for COVID-19," the organisaton said in a statement.

"The NSW public health system is the largest in Australia and its networked structure enables patients to be transferred to other hospitals where necessary, to ensure they receive the most appropriate care."

Six more people have been admitted to hospital across the MLHD, rising from 11 on Tuesday to 17 by Thursday afternoon.

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Two patients are in the intensive care unit, with one on a ventilator, the MLHD said.

The revelation comes as Riverina reaches another new high for daily COVID-19 cases.

More than 400 further people in the region were announced to have the virus on Thursday morning.

State government data indicates 89 Wagga residents alone tested positive for the virus on Wednesday, the largest contingent in the Riverina.

It brings the city to 244 new cases since Monday, and to 350 since January 1.

The MLHD recorded 419 new COVID-19 detections for the region in the 24 hours to 8pm Wednesday, up from 379 the day before.

The only local government area to best Wagga in the figures released yesterday was Albury, which recorded 113 cases, followed by the Griffith outbreak with 34, another 28 in Greater Hume, 22 in Federation and 11 in Leeton.

Berrigan, Coolamon and Murray River each recorded seven cases, six were found in Snowy Valleys and four positive results were detected in the Cootamundra-Gundagai council area.

Hilltops, Lockhart and Narrandera all recorded three new cases, and two more emerged in the Bland, Hay, Junee and Murrumbidgee LGAs.

Queues at the MLHD's drive-through clinic at Wagga Showground were already stretching back towards the entry gate on Urana Street within an hour of it opening yesterday morning as people seek out a PCR test.

NSW Health continues to urge people to only seek that test if they qualify under new guidelines, even as more than 111,000 people across the state turned out for a swab on Wednesday.

"Testing capacity in NSW is currently under enormous pressure," the department said. "The only people getting a PCR (nose and throat swab) should be those who have COVID-19 symptoms, live in a household with a confirmed COVID-19-positive case, or have otherwise been advised by NSW Health to get tested."

Call the COVID-19 hotline on 1800 831 099 to book a test.