Six more members of the crew on a livestock ship docked in Western Australia have tested positive to the coronavirus, bringing the total to 12.
The Al Kuwait docked in Fremantle on Friday, carrying 48 multinational crew, but it took three days for WA Health Department officials to act on a federal tip-off that three people on board had fevers.
Six cases were confirmed earlier this week and on Thursday, six more crew members were diagnosed with the virus.
They make up 12 of the state's 18 active cases.
The department says 38 crew are in hotel quarantine but a skeleton crew of 10 remains on board.
Test results for local workers who boarded the ship, including a Fremantle Port Authority pilot and a trainee who steered the ship into harbour, are expected on Friday.
All of the workers were wearing personal protective equipment when they boarded the ship, but the tests are being done to confirm they are clear.
Health Minister Roger Cook says they are self-isolating at home while awaiting the results.
"It's important to note that we're looking after these people and we're looking after their families to make sure there's no risk to the public," he said.
A seventh new case was also revealed on Thursday, a returned overseas traveller who is in hotel quarantine.
Meanwhile, discussions are underway to see if the rebadged Awassi Express, now named the Anna Marra, can take the 56,000 sheep that were meant for the Al Kuwait, which won't meet the 1 June northern summer live export deadline.
Ironically, the Awassi Express sparked the northern summer ban after footage emerged of thousands of sheep on board dead or dying from heat stress in 2017.
It is currently not far off the Fremantle coast.
Federal Agriculture Minister David Littleproud said his department may grant an exemption to the deadline.
The sheep are being held in feedlots and sending them to local abattoirs is considered a last resort.
Also on Thursday, WA Treasurer Ben Wyatt said the state economy would slump into recession next financial year, forecasting a $12 billion hit from the pandemic.
Premier Mark McGowan told parliament there was "no line of sight" when the state of emergency would end, with more than 16,000 Australians living overseas still trying to come home.
People in Australia must stay at least 1.5 metres away from others. Check your state’s restrictions on gathering limits. Testing for coronavirus is now widely available across Australia.
If you are experiencing cold or flu symptoms, arrange a test by calling your doctor or contact the Coronavirus Health Information Hotline on 1800 020 080. The federal government's coronavirus tracing app COVIDSafe is available for download from your phone's app store.
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