Health authorities in Queensland have urged the public to get vaccinated after a measles case was detected in Brisbane.

The case is believed to have been imported from overseas, with a return traveller from Bali visiting multiple locations in Brisbane and the Sunshine Coast.

It is another case in what is an ongoing outbreak across the state, with the Gold Coast and Cairns also being impacted by cases.

It has sparked concerns from infectious disease experts that fans travelling to Melbourne for the AFL grand final, where the Brisbane Lions are playing, could act as a potential spreader event.

On Monday, it was announced a dozen new cases had been detected in areas around the state.

The infectious person visited the following locations:

Authorities insist the locations listed above do not pose an ongoing risk, but say that people who went to these locations should monitor for symptoms for the next 18 days.

“If they do develop symptoms, they should seek medical advice,” Metro North Public Health’s Dr Doug Shaw said.

“Early symptoms of measles include a fever, tiredness, cough, runny nose, and red, inflamed eyes.

“Those symptoms then progress to a blotchy red rash, which often starts on the face before becoming widespread.

“Measles symptoms typically start between seven and 18 days after infection.”

Queensland Health said the best way to prevent measles is through vaccination.