RULES

* Five reasons to leave home: to shop for food or essential items, provide or receive care, exercise for two hours a day, work or study if unable to from home, and get vaccinated

* 5km travel limit for exercise and shopping

* No private or public gatherings

* Mandatory masks both indoors, except for homes, and outdoors

* Must work from home if possible

* Non-essential retail closed

* Supermarkets, bottle shops and pharmacies remain open

* Cafes and restaurants takeaway only

* Schools move to remote learning for all but vulnerable children and kids of essential workers

* Child care and kinder stay open

* Up to 10 mourners at funerals, weddings banned unless for end of life or deportation reasons

* Hospital visits limited, only for permitted reasons

* Parts of regional Victoria will be released from lockdown early if it's safe to do so

PREVIOUS VICTORIAN LOCKDOWNS

* 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 at least July 20, 2021, five days

HOW WE GOT HERE

* A crew of three NSW removalists, two of whom have since tested positive, did jobs at a Craigieburn home and the Ariele Apartments in Maribyrnong on July 8

* Four residents across two apartments on the third floor caught the virus including a man in his 60s

* He passed it on to his parents, aged 89 and 90, who live in Craigieburn

* That man also attended an AFL game between Carlton and Geelong at the MCG on Saturday with a friend

* The friend, a Barwon Heads man in his 50s, caught the virus and passed it on to two members of his household, another man in his 60s and a nine-year-old child

* Three other cases, two adults and a child, sitting in the same MCG section as the two men also tested positive following suspected "stranger-to-stranger transmission"

* Another case is a close contact of a COVID-positive Ariele Apartments resident

* In a separate cluster, a family of four from the Hume local government area returned from NSW. Three by car on July 4 and one by plane on July 8

* All four have progressively tested positive since Sunday

* A man in his 30s contracted the virus after speaking to a member of the family who he knew at Coles Craigieburn

CASES, CLOSE CONTACTS AND EXPOSURE SITES

* 18 local cases linked to NSW removalists and Hume family clusters

* Four new cases reported on Thursday, all linked to removalists cluster

* 1500 primary close contacts, 5000 secondary

* More than 85 exposure sites including multiple supermarkets, a Maribyrnong pharmacy and Point Cook pub

* Full list at https://www.coronavirus.vic.gov.au/exposure-site

Australian Associated Press