Fremont County adult has Wyoming's first 2026 measles case
Updated
Updated · Wyoming Department of Health · May 1
Fremont County adult has Wyoming's first 2026 measles case
12 articles · Updated · Wyoming Department of Health · May 1
The health department said possible public exposures occurred at a Walmart in Riverton on 24 April and a Maverik in Powell on 25 April.
People exposed were told to monitor for symptoms for 21 days and avoid crowded or high-risk settings, with infants, pregnant women and immunocompromised people facing the greatest danger.
Wyoming recorded 15 measles cases in 2025. Officials said the virus can linger in the air for up to two hours and urged residents to keep MMR vaccinations up to date.
With measles cases in Wyoming rising after years of absence, what strategies will be most effective in reversing declining MMR vaccination rates quickly?
How might continued misinformation about vaccine ingredients and safety challenge efforts to achieve herd immunity and prevent future outbreaks in the U.S.?