The outbreak on the MS Roald Amundsen comes just weeks after the cruise industry began to reopen.
Nearly three times more people died than Iran's government admitted, records seen by the BBC show.
The Australian city announces further business closures as it struggles to contain the coronavirus.
Local councillors fear China could use the trip to collect DNA samples for surveillance purposes.
Top medical adviser Deborah Birx says the virus is affecting rural communities as well as cities.
Life appears to have gone back to normal in some ways, but is still very different in others.
The city is heavily dependent on tourism and the coronavirus lockdown has badly hit the region.
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