Tourist sites at centre of measles outbreak

Tourist locations are at the centre of a measles alert after a woman in her 20s was diagnosed with the illness.

People may have been exposed to the virus between Saturday and Wednesday, at locations including Flinders Backpackers, Flinders Street Station, Phillip Island, St Kilda Beach, and multiple sites along the Great Ocean Road between Geelong and Warrnambool.

Measles has an incubation period of 18 days, so symptoms may show by March 21.