Wednesday, February 18, 2026-Health authorities in Missouri are alerting the public to potential measles exposure at St. Louis Lambert International Airport and a church in Collinsville. Officials say several individuals who later tested positive for measles visited these locations during the virus’s contagious period, putting others at risk of infection.
The Missouri Department of Health is urging anyone who was at the airport or church on the specified dates to monitor for symptoms, including fever, rash, cough, and red eyes. Vaccinated individuals are generally considered protected, but unvaccinated or partially vaccinated people are at higher risk and may need post-exposure prophylaxis. Public health teams are also conducting contact tracing to prevent further spread.
Authorities stress the importance of timely vaccination and encourage residents to check their immunization records. Measles is highly contagious, and swift action is crucial to protect vulnerable populations, including infants, pregnant women, and immunocompromised individuals. Health officials continue to monitor the situation and will provide updates if additional exposure sites are identified.

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