Queensland has recorded 62 further cases of COVID-19, bringing the state’s total to 555.
One person, believed to be a man in his 60s, is in an intensive care unit in Brisbane.
Mr Miles said most cases had been imported from overseas.
“We still have cases coming from overseas so while we have stopped the spread here we still have cases coming from Australians and Queenslanders coming home from overseas.”
Prime Minister Scott Morrison earlier announced all new arrivals to Australia would go into mandatory hotel quarantine.
“This initiative from the national cabinet is so important,” Mr Miles said.
“My message to Queenslanders anywhere in the world is if you can get back before midnight Saturday please do.”
So far, 13 Australians have died from the novel coronavirus, which emerged in the Chinese city of Wuhan in December.
All have been elderly and at least four had been on cruise ships in the days before they died.
How is coronavirus transmitted?
The human coronavirus is only spread from someone infected with COVID-19 to another.
This occurs through close contact with an infected person through contaminated droplets spread by coughing or sneezing, or by contact with contaminated hands or surfaces.
What are the symptoms of someone infected with coronavirus?
Coronavirus patients may experience flu like symptoms such as a fever, cough, runny nose, or shortness of breath.
In more severe cases, infection can cause pneumonia with severe acute respiratory distress.
What is the difference between COVID-19 and the flu?
The symptoms of COVID-19 and the flu are very similar, as they both can cause fever and respiratory issues.
Both infections are also transmitted the same way, via coughing or sneezing, or by contact with hands, surfaces or objects contaminated with the virus.
The speed of transmission and the severity of the infection are the key differences between COVID-19 and the flu.
The time from infection to the appearance of symptoms is typically shorter with the flu. However, there are higher proportions of severe and critical COVID-19 infections.