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Oregon Health Authority

Measles / Rubeola (vaccine-preventable)

2024 Outbreak in Oregon

Latest News

This outbreak is considered over as of September 26, 2024 (42 days after the last case onset).

Total Cases

31

Unvaccinated

31

Hospitalized

2

Deaths

0

Cases by County

County
Cases
Clackamas 9
Marion
21
Multnomah 1

Cases by Age

Age rangeCases
less than 10 yrs 13
10-19 yrs11
More than 20 yrs 7


 2024 Outbreak Resources


 D
ata on Measles in Oregon
  • Weekly data
  • Monthly data from Tableau dashboard
  • Measles data is included in the Annual Oregon Selected Communicable Disease Summary Communicable Disease Summary
  • Disease Information

    Measles is a highly contagious, airborne disease caused by measles virus. Measles starts with a fever, runny nose, cough, red eyes and sore throat, and is followed by a blotchy rash that starts on the face or at the hair line and then spreads all over the body. Approximately 30 percent of reported cases have one or more complications including pneumonia, ear infections, or diarrhea. Rarely, the virus causes encephalitis (brain infection). Complications are more common in young children and adults. The best protection against measles is MMR (measles-mumps-rubella) vaccine. Learn more about the MMR vaccine from the Centers for Disease Control and Prevention (CDC).

    OHA encourages physicians (and others) to maintain a high level of suspicion for measles, especially in people who have not received two doses of measles-containing vaccine. Suspect cases of measles, whether in doctors' offices or hospitals, should be immediately separated from other patients, tested for measles and reported to the local public health authority where they live, without delay, day or night, after identification.

    Disease Reporting

    What is required?

    All cases and outbreaks are reportable to local public health authorities (LPHAs) by individuals, health care providers and clinical laboratories. An individual required to report reportable diseases who is unsure whether a case might really be measles should err on the side of immediate reporting by contacting their LPHA.

    Cases are subject to worksite, childcare and school restrictions while in the communicable stage of the disease. When the disease is no longer communicable, restrictions will be removed by the local public health authority.

    Health Care Providers and Clinical Laboratories

    Health care providers and clinical laboratories are required by law to report cases and suspect cases of measles to local health departments immediately, day or night.

    Local Public Health Authorities

    Vaccination and Prophylaxis

    See Also

    General Public

    Local Public Health Authorities

    Providers, Clinical Laboratories and LPHAs

    Schools and Child Care Facilities

    Sample Letters

    • Sample letter for parents or guardians regarding measles outbreak in the region
    • Notification for Parents of a Child Who Attends a School with a Measles Case (Version 1)
    • Notification for Parents of a Child Who Attends a School with a Measles Case (Version 2)

    Communication Tools