South Australia will stick to its plan of reopening borders to the rest of the nation on July 20, despite the recent spike in cases in Victoria.

Those arriving from Victoria, and any other region deemed a virus hot spot, will need to self-isolate for 14 days upon arrival in the state.

A regional lockdown model, similar to the successful containment approach taken with the Barossa cluster would be used as a blueprint for virus containment.

Premier Steven Marshall told The Advertiser that SA were pioneers of the regional lockdown model.

“It was very effective and there’s been no further cases in the Barossa Valley since,” Premier Marshall said.

Under the regional lockdown model, people would be free to travel across state borders, without the need for a hotel-bound quarantine. However, SA Police would be charged with monitoring the adherence to isolation among those arriving from interstate.

National Cabinet will meet again today to discuss the plans.