Measles Alert: Infected Traveler Passes Through Seattle-Tacoma Airport

Measles Exposure Warning Issued After Infected Traveler at SEA Airport

Public Health – Seattle & King County has issued a public health alert following the confirmed presence of an adult with an active measles infection at Seattle-Tacoma International Airport (SEA). The individual, an Arizona resident, traveled through the bustling transportation hub, raising concerns about potential exposure for thousands of travelers and airport staff. This incident underscores the ongoing vigilance required against highly contagious diseases, even in 2025.

The infected traveler arrived at SEA on Alaska Airlines flight AS 112 from Phoenix, Arizona, at approximately 12:30 PM on Friday, February 21, 2025. They then proceeded to the baggage claim area and subsequently departed the airport in a taxi around 2:00 PM. Public health officials emphasize that anyone present in these specific locations during the identified timeframes may have been exposed to the measles virus.

Understanding Measles: A Highly Contagious Threat

Measles is a serious and highly contagious viral disease. It spreads through the air when an infected person coughs or sneezes, and the virus can linger in the air and on surfaces for up to two hours. Symptoms typically appear 7 to 21 days after exposure and include fever, cough, runny nose, red watery eyes, and a characteristic rash. The rash usually begins on the face and spreads downwards to the rest of the body.

While often considered a childhood illness, measles can affect individuals of any age and lead to severe complications such as pneumonia, encephalitis (brain swelling), and even death. The Centers for Disease Control and Prevention (CDC) reports that approximately 1 in 5 unvaccinated people who get measles are hospitalized. For every 1,000 children who get measles, 1 or 2 will die from it.

Who is at Risk and What to Do

Individuals who are most vulnerable to measles infection are those who are unvaccinated, have not had measles before, or have compromised immune systems. Public Health – Seattle & King County advises anyone who was at SEA Airport during the specified exposure times to:

• Review Vaccination Status: Confirm that you and your family members are fully vaccinated against measles (MMR vaccine).
• Monitor for Symptoms: Watch for any signs of measles, particularly fever, cough, runny nose, and rash, for 21 days following potential exposure.
• Contact Your Healthcare Provider: If symptoms develop, immediately call your healthcare provider. Do not go directly to a clinic or emergency room without calling first. This is crucial to prevent further spread of the virus to other patients and healthcare workers.

Dr. Eric Chow, Chief of Communicable Disease Epidemiology & Immunization Section for Public Health – Seattle & King County, stated, “Measles is highly contagious and can be a very serious illness. We urge anyone who may have been exposed to check their immunization status and monitor for symptoms. If you develop symptoms, please call your healthcare provider before visiting a clinic or emergency room so they can take precautions to prevent further spread.”

The Importance of Vaccination

The measles, mumps, and rubella (MMR) vaccine is highly effective and safe, providing robust protection against the disease. Two doses of the MMR vaccine are about 97% effective at preventing measles, while one dose is about 93% effective. Widespread vaccination is critical for achieving herd immunity, which protects those who cannot be vaccinated, such as infants and individuals with certain medical conditions.

Public health officials consistently highlight that measles outbreaks are often linked to unvaccinated individuals traveling from areas where the disease is more prevalent. This incident serves as a stark reminder of the global interconnectedness and the importance of maintaining high vaccination rates locally to prevent the re-establishment of diseases that were once largely eradicated.

Broader Context of Measles Resurgence

Globally, measles cases have seen a concerning resurgence in recent years, partly due to declining vaccination rates in some regions. The World Health Organization (WHO) has reported significant increases in cases in various parts of the world, making international travel a potential conduit for the virus. This particular case involving an Arizona resident traveling from an area with active measles underscores the importance of public health surveillance and rapid response to contain potential outbreaks.

Key Takeaways

• An adult with active measles was present at Seattle-Tacoma International Airport (SEA) on Friday, February 21, 2025, from 12:30 PM to 2:00 PM.
• Exposure locations include Alaska Airlines flight AS 112 from Phoenix, arrival gate, baggage claim, and a taxi departing the airport.
• Measles is highly contagious and can lead to severe complications, especially in unvaccinated individuals.
• Symptoms appear 7-21 days post-exposure and include fever, cough, runny nose, red eyes, and a rash.
• Anyone potentially exposed should check their MMR vaccination status and monitor for symptoms for 21 days.
• If symptoms develop, call a healthcare provider immediately before visiting a clinic to prevent further spread.
• The MMR vaccine is safe and highly effective, offering crucial protection against measles.

Conclusion

The recent measles exposure at Seattle-Tacoma International Airport serves as a critical reminder of the ongoing threat posed by vaccine-preventable diseases. While swift action by Public Health – Seattle & King County aims to mitigate further spread, the incident highlights the vital role of individual vaccination in protecting community health. As global travel continues, maintaining high vaccination rates remains the most effective defense against the re-emergence of diseases like measles, ensuring the safety and well-being of the broader population. Travelers and residents alike are encouraged to stay informed and ensure their immunizations are up-to-date to prevent future public health concerns of this nature.