Measles case traveled through Maryland, health officials say

Maryland health officials announced that a person with measles traveled on the Amtrak NE Regional and was at BWI Thurgood Marshall Airport between Jan. 7 and Jan. 9; anyone in those locations at those times may have been exposed.

A person infected with measles traveled through Maryland from Jan. 7 to Jan. 9, the Maryland Department of Health announced. Officials said the person rode the Amtrak NE Regional from Philadelphia to Washington, D.C., and was present at BWI Thurgood Marshall Airport during that period. Measles is described by state health officials and medical sources as highly contagious and spread through respiratory droplets. The health department noted recent case counts and issued information about possible exposures. Known details: - The potential exposure window was Jan. 7–Jan. 9, with travel on the Amtrak NE Regional from Philadelphia to Washington, D.C., and time at BWI Thurgood Marshall Airport. - The department stated that anyone who shared those locations at those times may have been exposed. - Maryland reported no measles cases in 2026 and provided counts for 2023–2025 as context. - Medical sources report that symptoms typically appear about 7–14 days after exposure and that early signs can include fever, cough, runny nose, red or watery eyes, followed by a rash. - The health department reported advice about checking vaccination history and said that two doses of a measles-containing vaccine or birth before 1957 are commonly associated with likely protection, and it noted contact with health providers or local health departments for those not fully vaccinated who believe they were exposed. Summary: Officials reported the travel and possible exposure and provided information on symptoms, incubation timing, and vaccination status. Undetermined at this time.