Hundreds of Australians remain stranded aboard cruise ships across the globe, with some told it could be weeks or months before they are able to return.
Australian passengers on the Ocean Atlantic are expected to be flown home from Uruguay on Thursday.
But guests of a nearby boat, the Greg Mortimer, have been told they will need to wait until 14 days after the last person aboard has experienced fever.
A man in his late 60s aboard the Greg Mortimer was taken to shore in Montevideo to go into isolation on Tuesday.
Foreign Minister Marise Payne said it was difficult for people onboard ships with flu-like symptoms given international concern about coronavirus
"We've been working closely with authorities to ensure we able to support those passengers when they are able to leave the ship," she told ABC radio on Wednesday.
"But like in Australia, there are different quarantine restrictions being imposed around the world, and different requirements for isolation."
© AAP 2020