Portland area warns of measles exposure at multiple healthcare facilities amid rising cases

Oregon health officials have issued new alerts for potential measles exposure at three Portland-area medical centres as cases surge nationally, prompting urgent vaccination and symptom monitoring advice.

Oregon health officials have warned that people who recently visited three Legacy Health facilities in the Portland area may have been exposed to measles, adding to a growing run of alerts across the metro region. The Oregon Health Authority and Multnomah County said the latest possible exposures took place at Randall Children’s Primary Care Clinic in Portland, Randall Children’s Hospital emergency department and Legacy Mount Hood Medical Center in Gresham.

Officials said anyone who was at the clinic on August 25 between 1:20 p.m. and 4:11 p.m., at the hospital emergency department in Portland on August 28 between 3:21 p.m. and 5:23 p.m., or at the Gresham medical centre on August 30 between 10:04 a.m. and 1:49 p.m. should check their vaccination status and monitor for symptoms for 21 days. Oregon health authorities said people born after 1957 who have never had measles and are not vaccinated should get the measles, mumps and rubella vaccine as soon as possible.

Anyone who develops symptoms is being urged to call a healthcare provider before arriving in person, so staff can limit exposure to other patients. Measles symptoms usually appear seven to 21 days after exposure and often begin with fever, cough, runny nose and red eyes before a rash spreads from the face to the rest of the body.

The warning comes after several earlier exposure notices in the Portland area this summer. Oregon health officials previously flagged Legacy Mount Hood Medical Center in Gresham in August, and earlier alerts also identified sites including Randall Children’s Hospital and Providence facilities in the metro area. The repeated notices underline how quickly the virus can move through busy healthcare settings.

Measles is among the most infectious diseases known and can spread through the air when an infected person coughs or sneezes. The virus can linger for up to two hours after the person has left, meaning others can become infected without ever being in the same room. Health experts say two doses of MMR vaccine are about 97% effective at preventing measles, and that roughly 95% immunity in a community is needed to keep it from spreading widely.

The latest local warnings come as measles cases rise nationally. Oregon has reported 50 cases so far this year, while more than 2,900 cases have been recorded across the United States in 2026, the highest total in 35 years. Pennsylvania confirmed two measles deaths last month among unvaccinated people, the first measles-related deaths reported in the country this year.

Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.