LATEST COVID-19 DEVELOPMENTS:
* Australia's COVID-19 vaccination program is expected to undergo a "big reset" with details to be announced on Thursday.
* Prime Minister Scott Morrison met with state and territory leaders on Monday for national cabinet, with a further meeting scheduled for Thursday.
* In a statement issued following the meeting, Mr Morrison said the leaders had agreed in-principle to a series of changes to the vaccination strategy to be considered at the next meeting.
* He said that would include options to bring forward the commencement of vaccinations for over 50 year olds under the priority group 2a, and the readiness of more state and territory-operated vaccination sites.
* The national strategy's priority will remain vaccinating people in the 1a and 1b groups, with all states to prioritise the use of the AstraZeneca vaccine for over-50s.
* Queensland Premier Annastacia Palaszczuk said no formal proposal was made to allow Australians returning from overseas to undertake home quarantine.
* NSW Premier Gladys Berejiklian earlier said all states and territories should be "far less rigid" in the approach to the vaccine rollout.
* Mr Morrison said ahead of the meeting there were strong arguments to bring forward the date of vaccinating those over 50.
* The Tasmanian government is stepping up to vaccinate some 12,000 aged care and disability workers that were meant to be covered by the federal COVID-19 immunisation rollout.
* Victorian authorities are expecting "significant demand" for the AstraZeneca COVID-19 vaccine as the state resumes rolling it out despite ongoing concerns about potential side effects.
* The Western Australian government is being accused of complacency as a second coronavirus infection control breach emerged at Royal Perth Hospital.
* Scammers are targeting South Australians with fake promises of early access to a COVID-19 vaccine, with Premier Steven Marshall describing the con as "despicable".
* The New Zealand government concedes thousands of families will remain separated, even as it relaxed border policies with Australia on Monday allowing some partners to reunite with loved ones.
AUSTRALIAN VACCINATION NUMBERS:
* There have been 1,586,252 doses administered in the national COVID-19 vaccination rollout up to Sunday, including 9084 in the past 24 hours.
* Of the total, 939,626 have been administered by the Commonwealth (an increase of 6290 in the past 24 hours).
* 766,741 have been doled out in primary care (+17,947), and 172,885 in aged and disability facilities (+534).
* 646,626 have been administered by the states and territories, including 2794 in the past 24 hours.
* 173,852 have been administered in NSW (+0), 164,045 in Victoria (+1492), 122,865 in Queensland (+0), 76,244 in Western Australia (+162), 46,591 in South Australia (+437), 28,933 in Tasmania (+212), 21,332 in the ACT (+480), and 12,764 in the NT (+11).
AUSTRALIAN CORONAVIRUS NUMBERS:
* Australia reported no locally-acquired virus cases on Monday. There were 24 new overseas-acquired cases in quarantine: eight in NSW, six in SA, four each in Victoria and the NT, and two in WA.
* 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 141,422,630.
* Deaths: at least 3,020,112.
* Recovered: at least 80,802,937.
Data current as of 1900 AEST on April 19, taking in federal and state/territory government updates and Johns Hopkins Coronavirus Resource Centre figures.
Australian Associated Press