WA Health has issued a public health alert following a confirmed case of measles in a returned overseas traveller who visited several locations in Perth while infectious.
The person attended multiple public venues, including Joondalup Health Campus between 20 and 26 October 2026 (inclusive).
A full list of exposure locations is available on the Department of Health website.
Anyone who visited these locations during the specified dates and times is urged to monitor for symptoms of measles.
The Department is working with relevant health services and businesses to identify and contact people who may have been exposed.
Communicable Disease Control Director Dr Paul Armstrong said measles is highly contagious and can spread rapidly, particularly among people who are not fully vaccinated.
"Measles spreads through the air when an infected person coughs or sneezes, and people can be infectious before they develop symptoms," Dr Armstrong said.
"Anyone who visited the listed exposure locations should remain alert for symptoms, even if they are currently feeling well.
"If symptoms develop, wear a mask and seek medical advice. It is important to call ahead before visiting a GP clinic or emergency department so precautions can be taken to protect other patients and staff."
Early symptoms of measles include fever, tiredness, cough, runny nose and sore eyes, followed by a red, non-itchy rash three or four days later.
The rash usually begins on the face before spreading to the rest of the body.
People who visited an exposure location should monitor for symptoms for 18 days after their potential exposure.
Dr Armstrong said the latest case was a timely reminder of the importance of vaccination, particularly as the holiday season approaches.
"With more people planning international travel during the festive season, it's important to make sure your vaccinations are up to date," he said.
"Measles continues to circulate in many countries overseas, and vaccination remains our best defence against the disease.
"Two doses of the measles, mumps and rubella (MMR) vaccine provide excellent protection, and I encourage anyone who is unsure of their vaccination status to check before travelling."
The MMR vaccine is free in WA for anyone born during or after 1966 who has not received two doses of a measles-containing vaccine.
Anyone concerned they may have measles can contact 1800MEDICARE (1800 022 222) for advice.
For more information, including the full list of exposure locations, visit the measles public health alert.
(ENDS)
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