Help is on the way for Cobar's only aged care facility which is currently under lockdown after more than half of the residents and almost all staff tested positive for COVID-19.

Nursing staff, including those from both levels of government, have been arriving progressively at Lilliane Brady Village over this week to support the sole remaining healthy RN (registered nurse) on site.

The first positive case at the facility, which is owned and operated by Cobar Shire Council, was first detected almost a week ago on Thursday 28 July.

However numbers quickly climbed over the weekend before stablilising at 17 of the facility's 33 residents, one of whom was hospitalised, and eight staff as of Monday 1 August, according to reports from the ABC.

Cobar Shire Council's Acting General Manager Kym Miller said as of today (Wednesday 3 August), the number of resident infections had climbed slightly but stabilised again.

"We're currently at 23 (resident) infections, we had one drop off and one new one come on. We're not sure at the moment if that means it's contained or just a lucky day," Mr Miller said.

"However, the person who was hospitalised is back in the village, which is sensational news."

ABOVE: The cause of the outbreak is currently still unknown. Image: Cobar Shire Council.

In addition to council's own outbreak management team, which Mr Miller said had been working relentlessly to keep up with the busy workload, additional nursing support are now flowing in to provide support over the next week.

"We have nine RNs from the Federal Public Health Unit coming in to give our staff a break which is pretty pleasing," Mr Miller said.

"Furthermore, we had a couple of other RNs and one EN arrive on Monday. (Also arriving today) is the group leader who will sort out how to get them through inductions.

"Even though a lot of our nursing staff will be ending their period of expected absence in the next couple of days, they definitely need a break. Those able to work have been incredibly loyal and worked huge hours."

The facility is not out of the woods yet, however, with Mr Miller worried about other critical gaps in their healthy work team, including cleaners and carers, and uncertain if they had been able to contain the spread.

"We're hoping we've contained it but we might have another six tomorrow, who knows. We'll have a better idea tomorrow of whether we've turned the corner when the visiting staff begin to mesh into the system," he said.

"Until then, we have our fingers crossed we've bottomed out and will go forward from here. In the end, we're pleased that the residents' care hasn't gone backwards.

"The people who tested positive were treated straight away with antivirals and, aside from the one hospitalisation, we've kept them at the village which is where they feel most comfortable."