Meanwhile, tracing efforts across the state have been scaled back to focus on positive cases and primary contacts.

Secondary close contacts will no longer be required to isolate, as authorities change their processes to manage the escalating case numbers.

Health Department deputy secretary Kate Matson said since Victoria is no longer pursuing a COVID-zero strategy, about 16,000 secondary contacts are being allowed to leave isolation this weekend.

“In an environment where we are unfortunately close to 2000 cases a day, the public health risk isn’t there in terms of secondary close contacts when you weigh it up with the operational impact,” she said on Saturday.

“So we want to dedicate our resources to primarily close contacts, confirmed cases and sensitive exposure sites.”

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Primary contacts are being asked to isolate away from the rest of their household and secondary contacts are being encouraged to get tested if they show symptoms.

Asked whether the state would reach 3,000 cases a day by the end of October, Ms Matson told reporters on Saturday: “At this point in time, we are on track in terms of hospitalisations and case numbers.”

She said the Burnet Institute was working on fresh modelling, given the high cases numbers, which would be released later this week.

Vaccination rates continue to rise in Victoria. As of Friday evening, 85 per cent of over 16s had one dose and 57 per cent were fully vaccinated.

A small number of protests were held in Melbourne on Saturday, with police arresting three people and fining 27 for breaching public health orders.

In Mildura, residents are entering day two of a seven-day lockdown to contain growing cases, with active infections in the area growing to 37.

Health officials in three states are on alert after a Victorian flight attendant worked on return Virgin flights from Melbourne to Adelaide, Sydney and Newcastle while infectious from 4 to 6 October.