Australian health authorities said on Saturday they had closed a clinic and were contacting around 70 patients of a doctor who has been diagnosed with coronavirus after recently returning from the United States.
The Melbourne-based general practioner returned to Australia on February 29.
He became unwell with a runny nose on an internal flight from Denver to San Francisco before flying to Melbourne on United Airlines flight 0060, Victoria State Health Minister Jenny Mikakos told a televised news conference.
He saw about 70 patients between March 2 and March 6.
"The doctor...most likely acquired his infection in the United States," Mikakos said.