The Department of Health is urging people planning to travel overseas during the upcoming school holidays to ensure they are fully protected against measles.
Two new measles cases have been reported in Western Australia, bringing the state's total to 35 cases this year.
The most recent cases of measles are linked and are associated with travel to Bali, Indonesia.
The cases visited multiple venues in Perth while infectious. New exposure locations have been added to the website.
Anyone who has visited a listed exposure location during the dates and times specified should monitor for symptoms of measles.
Dr Clare Huppatz, Acting Director Communicable Diseases Control Directorate, said although measles is rare in Australia, some countries were experiencing large outbreaks of the disease.
"There is an ongoing risk of measles being brought into WA from overseas, especially from popular holiday destinations such as south-east Asia," she said.
"We are fortunate to have the MMR (measles-mumps-rubella) vaccine which is extremely effective and free to all Western Australians."
Anyone planning to travel overseas should make sure their routine vaccinations are up to date, including the MMR vaccine. Vaccination is recommended at least two weeks prior to departure.
The MMR vaccine is safe and is included on the National Immunisation Program for children at 12 and 18 months of age.
WA Health has recently expanded the state-funded immunisation program to include an MMR vaccine for infants aged between 6 and 11 months who are travelling to countries of high measles activity.
If an infant receives this additional MMR vaccine before 12 months of age, they will still need the two doses routinely offered as part of the National Immunisation Program after 12 months of age.
Adults aged between 30 to 60 years should also get vaccinated if they do not have evidence of two doses of a measles vaccine.
Anyone who is not immune is at risk of developing the disease if they are exposed.
Measles is a highly infectious disease that can cause serious illness, particularly in young infants, and often requires hospitalisation.
Symptoms include fever, fatigue, runny nose, red eyes as well as a cough, which is followed several days later by a prominent red rash.
The rash usually starts on the face and head before spreading to the rest of the body.
Anyone returning from overseas who develops symptoms of measles should contact their GP to urgently arrange testing and seek medical care. They must call ahead to discuss their situation and wear a mask to prevent spreading the infection to others.
They can also contact healthdirect for advice on 1800 022 222.
Information about measles and where to get vaccinated is available on HealthyWA.
