CASES

* 20 new cases

- Six linked to Al-Taqwa College, one student and five household members

- Five to Mt Alexandra College, all household contacts of students

- Four to Caroline Springs shopping centre, two linked to cafe, one to real estate agent and one to bakery

- Five unlinked cases, three to family in City of Melton and two in City of Melbourne

* 14 cases isolating while infectious

* 6 cases were not isolating while infectious

* 100 total cases in the latest outbreak

* One person in hospital, none in intensive care

* 118 active cases in Victoria, including hotel quarantine cases and infections from the fifth lockdown cluster

VACCINATIONS

* 23,811 vaccines administered on Tuesday at state-run hubs

* 7000 AstraZeneca bookings and more than 30,000 Pfizer bookings made in the past 24 hours

EXPOSURE SITES

* More than 290 including multiple shopping centres

* About 13,800 primary close contacts

VICTORIAN LOCKDOWN HISTORY

* Lockdown one: statewide, March 30 to June 1, 2020, 63 days

* Lockdown two: Melbourne, July 8 to October 27, 2020, 112 days; regional Victoria, August 6 to September 13, 2020, 38 days

* Lockdown three: statewide, February 12 to February 17, 2021, five days

* Lockdown four: Melbourne, May 27 to June 10, 2021, 14 days; regional Victoria, May 27 to June 3, 2021, seven days

* Lockdown five: statewide, July 15 to July 27, 2021, 12 days

* Lockdown six: Melbourne, August 5 and ongoing until at least 11.59pm Thursday, August 19; regional Victoria, August 5 to August 9, 2021, four days

Australian Associated Press