Four new confirmed cases of measles have been announced on Wednesday, bringing the total to 14 confirmed cases this year.

The four cases are Victorian residents, all of whom have recently travelled overseas. It’s believed the cases are unrelated.

It’s understood the people affected may have been infectious while visiting multiple locations across the state.

The people affected visited Bendigo on April 23; Strathfieldsaye, Axedale and Toolleen on April 24; Heathcote on April 24 and 27; Ballarat between April 29 and May 4; and Melbourne airport on May 2 and 3.

It’s the fourth time this year Melbourne Airport has been visited by confirmed measles cases. Warnings were issued once in February and twice in March.

The onset of symptoms in new cases may not appear until as late as May 22. The Department of Health and Human Services recommends Victorians check their measles, mumps and rubella vaccine (MMR) is up to date and stay alert for symptoms.

Health Victoria advises people who have visited any of the above locations to look out for a rash, fever, severe cough and conjunctivitis. If symptomatic avoid contact with others where possible and make your way to your local GP or hospital.

More information on measles can be found at www.betterhealth.vic.gov.au.