Measles Alert: Potential Exposure Sites in Virginia, D.C., and Maryland

Health officials have reported 5 sites in at least nine separate instances of potential measles exposure in the region. If you were at any of the following locations during the specified dates and times, you may have been exposed:

1. Dulles International Airport (IAD)

March 5 (New Exposure): Concourse A, transport to International Arrivals Building (IAB), and baggage claim — 8:00 AM to 12:30 PM

March 5 (Previously Reported): Concourse A, transport to the main terminal and baggage claim — 4:00 PM to 9:00 PM

2. Kaiser Permanente Largo Medical Center

1221 Mercantile Lane, Upper Marlboro, MD

March 5, 7:30 PM – March 6, 4:30 AM

March 13, 4:15 AM – 10:00 AM

March 15, 7:45 AM – 3:15 PM

March 17, 2:30 PM – 7:00 PM

3. Ronald Reagan National Airport (DCA)

March 14: Terminal shuttle bus — 12:00 PM to 2:30 PM

4. Washington Metro

March 14: Yellow Line train from DCA station, transferring at L’Enfant Plaza to the Silver Line toward Downtown Largo — 12:15 PM to 3:15 PM

5. Passport Toyota

5001 Auth Way, Suitland, MD

March 17: 10:00 AM to 1:30 PM

These exposures are not linked to the ongoing measles outbreak in Texas, New Mexico, and Oklahoma. As of now, Virginia has not reported any confirmed measles cases in 2025.

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What Should You Do If You Were at One of These Locations?

If you’ve never received a measles-containing vaccine (such as the MMR vaccine or a measles-only vaccine used in some other countries), you may be at risk of developing measles. 

If you have been vaccinated but haven't been tested for antibodies to measles in decades, you may want to consider doing that because immunity can wane over time, leaving many previously vaccinated people at risk of infection. For most previously vaccinated people, symptoms will likely be less severe. However, even if less severe, they could be become carriers and contribute to transmission.  

Anyone exposed and potentially at risk should contact their healthcare provider immediately.

Monitor for symptoms — such as fever, cough, runny nose, and rash — for 21 days following your potential exposure.

If symptoms develop, stay home and isolate yourself, and call ahead before visiting any medical facility.

Sources: 1.https://northernvirginiamag.com/news/2025/03/21/virginia-reports-measles-exposures-at-area-airports/

2. https://health.maryland.gov/newsroom/Pages/Two-cases-of-measles-confirmed-in-Maryland-residents-with-recent-international-travel.aspx

3. https://dchealth.dc.gov/release/health-officials-investigating-measles-exposures-dc