The Wyoming Department of Health has confirmed a second measles infection in Teton County and is leading contact tracing and public-health guidance with support from the National Park Service, officials announced Saturday.
Where and when exposures may have occurred
Officials say several sites in Teton County and inside Grand Teton National Park are linked to possible community exposure. People who were at the listed places during the specified windows should watch for symptoms for three weeks and call a medical provider before seeking care if they become ill.
| Location | Date | Time |
|---|---|---|
| Colter Bay Convenience Store (Grand Teton NP) | July 7, 2026 | 9 a.m. to 11 a.m. |
| Colter Bay Cabin Office (Grand Teton NP) | July 7, 2026 | 3 p.m. to midnight |
| Smith's Food and Drug (Teton County) | July 5, 2026 | 11:30 a.m. to 1:30 p.m. |
| Wendy's (Teton County) | July 5, 2026 | 12:15 p.m. to 2:15 p.m. |
What to watch for and next steps
- Incubation period: Symptoms generally appear between seven and 21 days after exposure.
- Typical symptoms: Fever, cough, runny nose, red eyes and a rash.
- Precaution before visiting clinics: Call ahead so health-care facilities can take steps to avoid further spread.
Measles spreads easily through airborne respiratory droplets and can linger in an enclosed space for up to two hours after an infected person leaves. Because of that high transmissibility, public-health authorities are tracing contacts and issuing guidance to reduce onward transmission.
Who is coordinating the response
The Wyoming Department of Health is the lead agency for the local response, with the National Park Service Office of Health and Safety helping to notify park visitors, employees and community members. Grand Teton National Park published the exposure information to assist public notification efforts.
Residents and visitors who were present at the locations and times listed above should self-monitor for 21 days for fever, cough, runny nose, red or watery eyes or a spreading rash. Anyone who develops these signs is asked to contact their health-care provider by phone before arriving so appropriate infection-control measures can be arranged.
For more details and updates, consult the Wyoming Department of Health and Grand Teton National Park public pages.
Reporting from Teton County.
