Multnomah County Confirms New Measles Case Tied to Gresham Grocery Store
MULTNOMAH COUNTY, Ore. — Multnomah County health officials confirmed another case of measles linked to the Gresham WinCo grocery store, a known exposure site.
Nationwide, measles cases have been increasing since early 2025, with almost 2,300 cases reported last year. Most appeared in unvaccinated children. The latest report follows the earlier warning about WinCo at 2511 SE First St. in Gresham.
Oregon Health Authority (OHA) officials warned that anyone who visited the store on Saturday, March 7, may have been exposed to the measles, and Multnomah County health officials urged anyone who was at the store between 2 p.m. and 5 p.m. that Saturday to speak to their doctor.
County officials said that the person in the latest case and their family have been cooperative in working to limit further exposure and protect the community. Details about the person in the latest case were not revealed. But officials say there is little risk to the general public at this time.
Measles spreads through the air when an infected person speaks, breathes, coughs, or sneezes. This highly contagious respiratory virus can linger in the air for up to two hours. It can infect up to 90% of unprotected close contacts.
Source: Oregon Health Authority WinCo exposure notice, Multnomah County measles case release, CDC measles vaccination guidance and CDC measles case data
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According to OHA, anyone not protected against measles is at risk. Complications can include pneumonia, brain inflammation, and death. OHA encourages residents to check their vaccination status and contact a health care provider if they have questions.
Health care providers should report suspected cases immediately and consider post-exposure treatment for exposed patients.
The measles, mumps, and rubella (MMR) vaccine can be given within 72 hours of being exposed and is recommended. Immunoglobulin may be administered within six days.