Mystery over NSW man's coronavirus infection sparks fears


Health authorities are investigating how a man in his 20s north of Sydney became infected with the coronavirus, sparking fears of possible community transmission.

The new patient based in Illawarra is one of three new infections revealed today in New South Wales but the other two are returning overseas travellers and are already isolated in hotel quarantine.

Two new cases caused by community transmission have been detected in the past three days, the source of infection health authorities fear the most because it raises the possibility of untraced cases of the deadly pandemic.

Meanwhile, seven of the 12 cases of COVID-19 announced in Victoria on Monday are from the one family, the state's health department says.

A total of 11 family members have now tested positive for the infection in households in Melbourne's northern and southeastern suburbs.

The extended family live in Coburg, Broadmeadows and Pakenham and had recently gathered together, Victoria's chief health officer Professor Brett Sutton told reporters on Monday.

"The family is very large… they've had gatherings across different households as many of us do now," he said.

"(It's) no fault of that family."