Premier Steven Marshall today confirmed all the latest infections were already in quarantine. Chief Health Officer Nicola Spurrier said one of the cases was a child who had returned from overseas. READ MORE: South Australia Premier Steven Marshall said the latest COVID-19 outbreak in NSW was very concerning.(Nine) One is linked to the the Tenafeate Creek Wines at Yattalunga and other is associated with the Greek on Halifax restaurant. The state received a record breaking 23,719 tests yesterday. Mr Marshall said because of people's "diligence", South Australia was on track to come out of lockdown on Tuesday night. The Transition Committee will meet today and again tomorrow to determine when restrictions across SA will ease.