Victoria recorded two new locally acquired COVID-19 cases in the 24 hours to Sunday, as authorities are focused on containing the spread of two separate virus variants.

Another six new cases were reported in hotel quarantine, but local transmission has dropped in comparison, with five, four and three cases recorded respectively over the last three days.

Melburnians are undergoing their second lockdown weekend, following the 7-day extension announcement .

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And while CBD streets have been eerily quiet, Saturday’s anti-lockdown protests broke the pattern, even though demonstrations were small in numbers.

A series of anti-vax rallies that were planned to take place outside vaccination hubs also failed to gather big crowds. Close to 20,000 vaccinations were administered at state-run centres on Saturday.

Still, two protesters were arrested for breaching public health orders, a 48-year-old man from Caroline Springs, and a 33-year-old Mernda man. A further 16 penalty notices were issued by Victoria Police, while according to a police spokesperson a total of 14 people were fined for travelling outside of the permitted zone or failing to wear a mask.

The ‘circuit-breaker’ has given contact tracers needed time to track down the spread of the Kappa and Delta variants.

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Speaking to reporters on Saturday, infectious diseases expert Sharon Lewin referred to her “strongest hypothesis” that the Delta strain had originated from hotel quarantine.

Sunday’s newest case numbers come after 29,000 test results were returned. Meanwhile the number of exposure sites has risen to 390.

Authorities have also issued a health message for anyone living or having visited several of Melbourne’s inner west and northern suburbs.

The public is urged to monitor for symptoms of coronavirus and get tested after an unexpected detection of COVID-19 in wastewater.

The wastewater sample was taken last Thursday, June 3.

“This new detection is of interest as there are currently no confirmed COVID-19 cases in that area but it does contain exposure sites and is near West Melbourne,” the DHHS said in a statement.

“The unexpected detections may be due to someone who has had COVID-19 that is no longer infectious continuing to ‘shed’ the virus or it may be due to an active but undiagnosed infectious case.”

The suburbs include Aberfeldie, Essendon, Essendon West, Flemington, Footscray, Kensington, Maribyrnong, Moonee Ponds, Parkville, and Travancore.