Snohomish County Health Department has issued the following health alert and a press release with more details.
Exposure Locations
| Date | Time | Location |
|---|---|---|
| 12/27/25 | 1:00 PM – 3:00 PM | McDonald’s – 530 128th St. SW, Everett, WA 98204 |
| 12/28/25 | 2:00 PM – 6:30 PM | Slavic Christian Church Awakening – 4223 78th St. SW, Mukilteo, WA 98275 |
| 12/29/25 | 11:00 AM – 2:00 PM | Flying Squirrel Trampoline Park – 1325 SE Everett Mall Way, Everett, WA 98208 |
| 12/29/25 | 1:00 PM – 3:00 PM | Chick-fil-A – 8810 36th Ave, Marysville, WA 98270 |
| 12/30/25 | 1:00 PM – 3:00 PM | Mukilteo-Clinton Ferry – Mukilteo, WA 98275 |
| 12/30/25 | 6:00 PM – 9:30 PM | Fisherman Jack’s – 1410 Seiner Dr., Everett, WA 98201 |
| 1/1/26 | 6:45 AM – 9:00 AM | Travelers on rental car shuttles going to/from airport & Consolidated Rental Car Facility – 3150 S 160th, SeaTac, WA, 98188 |
| 1/1/26 | 7:00 AM – 11:15 AM | Seattle-Tacoma International Airport N Concourse (Gate N4) + Green Train Line – Sea-Tac, WA, 98158 |
Requested actions
Immediately report suspected measles cases. Call the reporting line: 360-778-6150.
- Anticipated symptom onset dates for potentially linked cases: Between January 4 and January 22.
- All public exposure locations have been added to the Washington State Public Measles Exposure Location Tracker.
Consider measles in patients with these symptoms:
- Prodrome of fever, cough, coryza, and conjunctivitis for 2–4 days.
- Generalized maculopapular rash. Typically begins on the face at the hairline and spreads downward to the neck, trunk, and extremities.
- Koplik spots may appear on the buccal mucosa 1–2 days before the rash.
- Patient typically appears very ill.
- Suspected Measles Case Checklist may help with clinical evaluation.
Immediately isolate patients with suspected measles:
- Instruct reception and triage staff to identify patients with measles symptoms.
- Patients with suspected measles should wear a mask covering their nose and mouth.
- Patient should remain masked during the entire visit.
- Immediately triage the patient away from the waiting area.
- Immediately room the patient and close the door.
- Place the patient in negative pressure isolation, if available.
- The exam room door should remain closed.
- Only staff with documented immunity to measles should enter the patient’s room.
- All staff—even those with immunity—should wear PPE (personal protective equipment).
- Modified measles cases have occurred in vaccinated healthcare workers with documented immunity.
- After the patient is discharged, do not enter the room for 2 hours.
Collect specimens from patients with suspected measles for diagnostic testing:
- For PCR (polymerase chain reaction) and virus isolation:
- Nasopharyngeal swab placed in VTM (viral transport media).
- Urine (minimum 20 mL) in a sterile, leak-proof container.
- For measles IgM (immunoglobulin M) serology:
- Serum (minimum 1 mL) in a red top or red-grey top tube.
While the patient is still in the office, call Whatcom County Health and Community Services. We will coordinate transporting the specimen to Washington State Public Health Lab.
Questions?
Contact Whatcom County Health and Community Services at 360-778-6100- 360-778-6100 Main Call Line – available M-F 8:30am to 4:30pm.
- Afterhours Answering Service – available after 4:30pm and weekends, call 360-778-6100 and press 2 to be connected to the on-call manager or health officer.
- 360-778-6150 Communicable Disease Report Line – 24 hours a day 7 days a week
- 360-778-6103 Confidential Communicable Disease Fax – 24 hours a day 7 days a week
- 509 Girard Street, Bellingham WA 98225