Additional testing for all passengers on board will be implemented as a result.
"As we learnt from the Playford Hotel, we need to make sure as soon as we have somebody test positive, we get them out of that hotel and move them to (the dedicated Covid-19 positive facility) Tom's Court," Professor Spurrier said.
"This gives us greater ability to pick up anybody who might have been at higher risk of getting Covid.
"It's not nice having a little one being very unwell."
Spurrier confirmed a positive case from yesterday was also transported to hospital.
The man, aged in his 60s, was admitted to the Royal Adelaide Hospital and remains in a stable condition.