Health officials in Virginia are warning people who took one Amtrak train last week they may have been exposed to measles.
Virginia's Department of Health says the possible exposure involves Northeast Regional Train number 171 from Boston to Lynchburg, Va. It made stops in Maryland, the District and Virginia.
Anyone who got off the train before its arrival in Philadelphia shouldn't be concerned, according to officials. Anyone on the train south of Philadelphia should check their vaccination status.
Measles is a highly contagious illness spread through coughing, sneezing, and contact with secretions from the nose, mouth, and throat. Symptoms include fever, runny nose, watery red eyes, cough and a rash on the face and body.
The health department says anyone noticing symptoms should call a doctor. Based on an exposure last week, officials estimate symptoms could develop as late as September 7.