LATEST COVID-19 DEVELOPMENTS:
* More than half of Australia's population will be in lockdown until at least next week with a highly infectious coronavirus strain spreading in three major capital cities.
* South Australia will spend seven days in lockdown as authorities try to contain a virus outbreak, which numbered five cases by Tuesday afternoon.
* Victoria's lockdown will be extended for a further seven days to at least next Tuesday, having uncovered 13 new local cases on Monday.
* NSW has recorded 78 new local COVID cases with Premier Gladys Berejiklian saying the drop in daily cases indicated stay-at-home measures have "stabilised" the Greater Sydney outbreak. At least 29 of the cases were in the community during their infectious period.
* Ms Berejiklian said workers should dob in bosses if called into workplaces unnecessarily after the government established strict lockdown work-from-home mandates.
* A Queensland woman has imported the Delta variant of COVID-19 after becoming infected at a Melbourne pub and travelling home. Public health alerts have been issued for the Sunshine Coast, Brisbane and Mareeba, as well as flight VA791 from Brisbane to Cairns.
* Tasmania has shut its border with South Australia, having already closed off to NSW and Victoria.
* Scott Morrison has suffered a major hit in voters' opinion of his crisis management. The latest Essential poll shows 49 per cent of Australians believe the prime minister is good in a crisis, down from 64 per cent in mid-March.
* The federal government continues to cop criticism for its sluggish vaccine rollout which has fully immunised 14 per cent of people aged over 16. The government is also resisting calls to reinstate a wider wage subsidy program akin to JobKeeper.
* Mr Morrison has returned to Canberra for 14 days of restrictions after being granted an exemption to travel from Sydney.
AUSTRALIAN VACCINATION NUMBERS:
* There have been 10,295,444 doses administered in the national COVID-19 vaccination rollout up to Monday, including 169,911 in the previous 24 hours.
* Those figures are made up of 7,363,089 first doses (35.71 per cent of Australians 16 and over) and 2,906,341 second doses (14.09 per cent).
* Of the total, 5,806,944 have been administered by the Commonwealth, including 95,837 in the previous 24 hours.
* 4,488,500 have been administered by the states and territories, including 74,074 in the previous 24 hours.
* 1,416,523 have been administered in Victoria (+24,001), 1,211,619 in NSW (+22,732), 788,036 in Queensland (+10,440), 411,810 in Western Australia (+6229), 325,328 in South Australia (+5834), 143,565 in Tasmania (+2147), 112,598 in the ACT (+1636) and 79,021 in the NT (+1055).
AUSTRALIAN CORONAVIRUS NUMBERS:
* Australia reported 95 local cases on Monday: 78 in NSW, 13 in Victoria, two in SA and one in Queensland.
* There were six new overseas-acquired cases in hotel quarantine: two each in Victoria and Queensland and one each in NSW and SA. This does not include the diagnosis of 10 COVID-positive crew members on a cargo ship docked in Fremantle, Western Australia.
* The national death toll is 915: Victoria 820, NSW 61, 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 190,883,000
* Deaths: at least 4,095,000
* Vaccine doses administered: at least 3,652,105,000
Data current as at 1600 AEST on July 20, taking in federal and state/territory government updates and Johns Hopkins Coronavirus Resource Centre figures.