The fourth case of the potentially deadly coronavirus has been confirmed in Queensland, as the Chinese national women's soccer team leaves the Brisbane hotel where they were quarantined for more than a week.

Key points: The man was travelling in the same tour group as the three other confirmed cases in Queensland

The man was travelling in the same tour group as the three other confirmed cases in Queensland All four people are in Gold Coast University Hospital in a stable condition

All four people are in Gold Coast University Hospital in a stable condition The number of deaths in China is 490, with more than 24,000 infected worldwide

The latest person confirmed to have the virus in Queensland is a 37-year-old man from Wuhan, China, who is currently isolated at the Gold Coast University Hospital.

He is a member of the same tour group as the three other people in the state who have tested positive to the virus.

A 44-year-old man, a 42-year-old woman and an eight-year-old boy are still in hospital in a stable condition.

Premier Annastacia Palaszczuk said three of the four people isolated in the Gold Coast University Hospital are quite ill.

"The latest person diagnosed is showing symptoms and three out of the four are quite ill at the moment — but we will be monitoring them and keeping the public up to date.

"I think they're testing on average 40 to 50 people a day. They've got the pathology labs working and I am very confident with the amount of testing that's happening and hopefully we can contain this but it's a really big issue."

Five others from the same tour group remain in isolation in hospital.

The man is the 14th person in Australia to be infected with the virus. There are four cases each in NSW and Victoria and two cases in South Australia in addition to the four in Queensland.

On Tuesday night, the eight-year-old boy in Queensland became the first child in Australia confirmed as having coronavirus.

As of Wednesday, the number of deaths in China from the virus reached 490 with 24,567 confirmed infections, according to John Hopkins University.

Soccer team released from quarantine

Thirty-two players and support staff from the Chinese women's national soccer team left Brisbane's Westin hotel this morning.

They had travelled through the city of Wuhan, where the outbreak is believed to have begun, before coming to Australia.

The group was checked by border officials after arriving in Brisbane on a flight from Shanghai last week.

Authorities said they worked with the team and the hotel's management to ensure the visitors remained separated from staff and other guests.

Queensland Heath ramped up testing across the state on Tuesday.

Health Minister Steven Miles told State Parliament collection sites were expanded to private pathologies.

"QML and Sullivan & Nicolaides Pathology are now equipped to collect samples from travellers who have been in China or anyone who might have been in contact with an infected patient," he said.

"This means most towns and suburbs in Queensland have somewhere that can take a sample to test for coronavirus."

Mr Miles said providing more collection points gave doctors more options.

"They can choose to collect samples themselves or refer to a collection point," he said.

"It makes testing much more accessible and should allay concerns from GPs."