In an update issued late on Wednesday, SA Health said the Mount Barker Primary School Redevelopment Site (construction site only) has been identified as a close contact exposure location from Tuesday to Thursday last week.

Anyone fully vaccinated who was at the site on those days from 7am to 3pm is required to quarantine for seven days from time of exposure, while unvaccinated contacts are asked to quarantine for 14 days.

The same health advice applies to the Derrimut 24:7 Gym, which is listed as a close contact exposure site for Monday, December 6 from 5:25pm to 8:30pm and Tuesday, December 7 from 4:45pm to 8:30pm.

Meanwhile, the Art Gallery of SA has been identified as a casual contact exposure location for Tuesday, December 7 from 11:30am to 1pm.

Any patrons present at the designated time are asked to quarantine until they receive a negative test.

The 756 bus route between Willunga and McLaren Vale has also been listed as a casual contact site, along with a party hire company in Lonsdale.

A full list of more than 100 exposure sites and times can be found here.