LATEST COVID-19 DEVELOPMENTS:
* There has been one new historical COVID-19 infection recorded in Queensland, as fresh information discounts reports linking an existing case to a party for up to 25 people.
* Sunday's reported community case is the brother of one of the state's current cases, who is no longer infectious and is believed to be a "missing link" between the most recent cluster and a doctor who tested positive earlier this month.
* Queensland Health Minister Yvette D'Ath said reports one of the cases had thrown a party for up to 25 guests were incorrect.
* Further investigations by police and health authorities suggest the people who attended were limited to the man's housemates and one other person.
* Ms D'Ath said officials acted on what they understood to be true at the time and told reporters she became aware of the new information on Sunday morning.
* Chief Health Officer Jeannette Young said Queensland's two active cases were both in hospital and while it was too early to relax, she was pleased testing efforts had not uncovered further community transmission.
* The COVID-19 cluster has sparked a lockdown of Brisbane City and Moreton Bay council area hospitals, aged care facilities, prisons and disability services providers.
* As well as the historical case, Queensland recorded two new cases in hotel quarantine on Sunday.
* The Brisbane Lions will remain in Melbourne until at least Monday as the AFL and state governments closely monitor Queensland's unfolding COVID-19 situation.
* The NRL are also scrambling to ensure two games go ahead next weekend, with a COVID-19 cloud hovering over North Queensland's clash with Cronulla on the Sunshine Coast on Saturday, and Melbourne's Good Friday hosting of Brisbane.
* More than half a million Australians have now been vaccinated against COVID-19, with the rollout boosted by the AstraZeneca vaccine manufactured in Melbourne.
* The Rural Doctors Association says a "significant number" of doctors in country Australia have missed the COVID-19 jab.
AUSTRALIAN CORONAVIRUS NUMBERS:
* Australia reported one new locally acquired case of the coronavirus in Queensland on Sunday. There were six overseas acquired cases reported in hotel quarantine: two each in Queensland and South Australia, and one each in Western Australia and the Northern Territory.
* The national death toll is 909: Victoria 820, NSW 56, Tasmania 13, WA 9, Queensland 6, 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 126,726,308
* Deaths: at least 2,777,336
* Recovered: at least 71,768,319.
Data current as of 1715 AEDT on March 28, taking in federal and state/territory government updates and Johns Hopkins Coronavirus Resource Centre figures.