Measles Cases in Western Australia Linked to Travel from Bali

Perth, Western Australia – September 13, 2025

Western Australia (WA) Health authorities have confirmed two new cases of measles in Perth, both traced to recent travel from Bali. These new cases bring the state’s total number of measles infections for the year to 35, representing a significant rise compared to previous years and prompting urgent public health measures.

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Details of the Recent Cases

The two individuals diagnosed with measles had visited several public locations while infectious, including supermarkets and other busy areas in the Butler region between September 6 and 7. Health authorities are urging anyone who was at these locations during the specified time to monitor for symptoms and seek medical attention promptly if they experience any signs of infection.

Measles is highly contagious and can spread quickly through respiratory droplets when an infected person coughs or sneezes. Close contact in public spaces increases the risk of transmission, especially among unvaccinated individuals.

Symptoms of Measles

Measles is a viral infection characterized by a high fever, fatigue, runny nose, cough, sore red eyes, and a distinctive red rash that usually begins on the face and spreads to the rest of the body. Symptoms generally appear 7 to 18 days after exposure. Early detection and medical intervention are critical to prevent serious complications such as pneumonia, encephalitis, and severe dehydration.

Health officials emphasize that individuals experiencing these symptoms, particularly those who recently traveled from regions with active outbreaks, should contact a healthcare provider immediately.

Vaccination and Public Health Advisory

WA Health authorities are urging the public to ensure they are fully vaccinated against measles. The measles-mumps-rubella (MMR) vaccine is highly effective in preventing infection and is available for all residents. Ensuring complete vaccination coverage remains one of the most effective strategies to control the spread of measles, especially during travel seasons and when returning from areas with ongoing outbreaks.

The acting director of communicable diseases has emphasized that travel to popular holiday destinations, including Bali, carries an ongoing risk of measles importation. Residents are reminded to verify their vaccination status before traveling and to seek immediate medical attention if symptoms appear after returning from international travel.

Travel-Related Measles Cases Across Australia

This latest development in Perth follows other travel-linked measles cases reported in different parts of Australia. Health authorities have documented incidents where travelers returning from overseas locations inadvertently spread the infection to local communities, highlighting the importance of public vigilance and vaccination.

Authorities continue to advise travelers to avoid crowded public spaces if they are unwell and to adhere strictly to vaccination guidelines. Individuals who have been in contact with confirmed cases are urged to monitor themselves for symptoms and consult healthcare providers promptly.

Public Health Measures and Response

WA Health has implemented several measures to prevent further spread of measles, including:

Conducting contact tracing for confirmed cases.
Issuing public alerts regarding potential exposure locations.
Advising vaccination for at-risk populations.
Encouraging the public to maintain good hygiene and stay informed about symptoms.

Hospitals and clinics in affected areas have been placed on alert to quickly identify and treat suspected cases. Public health authorities continue to monitor the situation closely, with a focus on preventing secondary outbreaks.

Conclusion

The recent measles cases in Western Australia underscore the critical importance of vaccination, public awareness, and vigilance, especially among international travelers. As measles remains highly contagious, authorities are calling on all residents to ensure their immunizations are up to date, seek medical care promptly if symptoms arise, and adhere to public health guidance.

Health officials stress that early intervention, combined with comprehensive vaccination coverage, is essential to prevent further spread and protect vulnerable communities from severe complications associated with measles.