LATEST COVID-19 DEVELOPMENTS:
* Victoria entered day two of its fourth lockdown on Saturday, with five new cases and contact tracers focusing on five of 150 Melbourne exposure sites.
* The restrictions again sparked protest rallies, with at least 10 people arrested in Melbourne's Flagstaff Gardens.
* People infected in the outbreak have the B1617 strain of the virus, first identified in India, which authorities believe could be 50 per cent more transmissible than other variants.
* Victoria has asked for 160 Australian Defence Force staff to help doorknock positive cases and primary close contacts, as 15,000 people self-isolate.
* The federal government has confirmed it will not provide any financial support to businesses affected by the lockdown, which is expected to deliver a $2.5 billion hit to the Victorian economy.
* Opposition leader Anthony Albanese said given the government had "failed dismally" to protect Victoria, it must introduce financial support for people during the lockdown - the first without the JobKeeper scheme.
* Acting Victorian Premier James Merlino also pointed the finger at the federal government, saying a successful vaccine rollout and fit-for-purpose quarantine facilities may have changed Victoria's fate.
* A record number of people have lined up for COVID tests in Victoria, with 56,000 administered in the 24 hours to Saturday morning. Health workers also administered 21,626 jabs.
* There were 17,012 tests conducted in NSW to 8pm Friday, compared with the previous day's total of 17,593.
* The highest number of vaccines in one day (14,190) were also administered by NSW Health, 5357 of them at the Sydney Olympic Park hub.
* The AFL is working through contingency plans for a rejigged round 12, with the Richmond-Essendon 'Dreamtime at the G' match expected to be in Perth.
* Melbourne Storm have shifted their next home game to Queensland, while NRL boss Peter V'landys says the opening State of Origin match is unlikely to go ahead at the MCG.
AUSTRALIAN VACCINATION NUMBERS:
* There have been 4,153, 149 doses administered in the national COVID-19 vaccination rollout up to Friday, including 121,610 in the previous 24 hours.
* Of the total, 2,662,122 have been administered by the Commonwealth (an increase of 67,881 in the previous 24 hours).
* 2,316,013 have been issued in primary care (+63,410) and 346,109 in aged and disability facilities (+4471).
* 1,491,027 have been administered by the states and territories, including 53,729 in the previous 24 hours.
* 445,158 have been administered in Victoria (+23,524), 411,834 in NSW (+14,190), 219,552 in Queensland (+7423), 165,652 in Western Australia (+3790), 104,771 in South Australia (+2476), 64,601 in Tasmania (+1308), 47,930 in the ACT (+1018) and 31,529 in the NT (NA).
AUSTRALIAN CORONAVIRUS NUMBERS:
* Australia has reported five new virus cases on Saturday, all in Victoria.
* There have been at least five new overseas-acquired cases in hotel quarantine: two in Victoria and one each in Queensland, NSW and the Northern Territory.
* The national death toll is 910: Victoria 820, NSW 56, Tasmania 13, WA 9, Queensland 7, SA 4, ACT 3 (Two Queensland residents who died in NSW have been included in the official tolls of both states).
GLOBAL CORONAVIRUS NUMBERS:
* Cases: at least 169,471,649
* Deaths: at least 3,523,126
* Vaccine doses administered: at least 1,803,252,398.
Data current as of 1700 AEST on May 29, taking in federal and state/territory government updates and Johns Hopkins Coronavirus Resource Centre figures.