Gold Coast coronavirus case is a beautician recently returned from Iran

A 63-year-old woman has been put into isolation on the Gold Coast after testing positive to coronavirus.

On Saturday it was revealed the number of confirmed coronavirus cases in Australia has increased by two to 25, including the Queensland woman.

The beautician saw up to 40 people at a Southport salon on Thursday before she started to develop symptoms and went home.

"She saw a number of clients each for brief interactions, so we believe the risk is incredibly low," she said.

Health authorities are trying to track down all the people the woman treated.

A 79-year-old west Australian woman has also tested positive after being evacuated from the Diamond Princess cruise ship in Japan.

This comes as the World Heath Organisation raised the risk of the spread of the disease to "very high".