NSW health authorities are warning shoppers who have visited major retailers in Sydney's south-west to monitor for symptoms after positive COVID-19 cases attended the stores earlier this month.
Public health alerts were issued for Big W at Carnes Hill, Aldi at Edmondson Park, and stores at Casula, including Chemist Warehouse, Bunnings and Costco.
It comes as NSW recorded five new COVID-19 cases, including three locally acquired infections.
NSW Health said one of the local transmissions was linked to the Liverpool private clinic cluster, bringing that total to eight cases.
The health authority said it had not named the clinic because everyone at the venue on same day as the COVID-19 source had been contacted.
"There is no risk to the public as all contacts have been advised," a NSW Health spokesperson said.
"It is therefore not necessary to identify the clinic."
Another of the new infections is a contact of a previously reported case.
The other local case is under investigation.
However, NSW Health said the case was at Lakemba Radiology on October 1 from noon to 2:30pm.
Anyone at the medical centre at that time are being asked to monitor for symptoms and get tested if they develop.
The remaining two new cases were overseas travellers in hotel quarantine.
NSW Health has also upgraded a warning over a bus trip on October 4, heightening the rating from casual to close contact advice.
All passengers are considered close contacts and need to get tested immediately and isolate for 14 days regardless of the result.
The bus was a train replacement service travelling from Central Station to Strathfield from 11:48pm to 12:15am.
Health authorities also issued an alert for the following venues, which were visited by positive cases:
- Big W, Carnes Hill, on October 4, from 3:00pm to 4:30pm
- Aldi, Edmondson Park, on October 4, from 6:30pm to 7:00pm
- Chemist Warehouse, Casula, on October 6, from 12:30pm to 1:00pm
- Bunnings, Crossroads, October 7, from 2:00pm to 3:00pm
- Costco, Casula, on October 9, from 3:00pm to 3:30pm
Anyone who attended those venues at those times is considered a casual contact. They must monitor for symptoms and get tested immediately if any develop.
There were 12,823 tests carried out in the 24 hours to 8:00pm last night, compared with 15,439 in the previous reporting period.
The NSW Health alert said it was "a concern" that testing numbers had dropped recently.
"This is particularly important for people in the South Western Sydney and Western Sydney areas," the alert said.
"We continue to encourage all people to come forward for testing if they experience even the mildest of symptoms," NSW Health's Dr Christine Selvey said.
The state has conducted a total of 2,811,527 tests since the outbreak began.
The total number of cases to date is 4,088, with 55 people currently being treated.
