PRINCE GEORGE'S COUNTY, Md. (DC News Now) -- State and county health officials said Thursday that two people who recently traveled abroad had confirmed cases of the measles. The Maryland Department of Health and said the people, who live in Prince George's County, traveled together internationall y. These cases come after someone in Howard County was diagnosed with measles. Health officials said they were working to identify anyone who might have been exposed to the disease in addition to those known to be on the flight with the two people. Benadryl bottles recalled over risk of child poisoning People who were at these locations potentially were exposed to measles: Washington Dulles International Airport: Concourse A, on transportation to the International Arrivals Building (IAB) and in the baggage claim area  March 5th, 8 a.m. - 12:30 p.m. Kaiser Permanente Largo Medical Center, 1221 Mercantile Ln, Upper Marlboro March 5th, 7:30 p.m. - March 6th, 4:30 a.m. March 13th, 4:15 a.m. - 10 a.m. March 15th, 7:45 a.m. - 3: 15 p.m. March 17th, 2:30 p.m. - 7 p.m. Ronald Reagan Washington National Airport: Terminal Shuttle Bus March 14th, 12 p.m. - 2:30 p.m. Washington Metro Area Transit: Yellow Line Train from Ronald Reagan Washington National Airport station transferring at the L’Enfant Plaza station to the Silver Line Train heading towards the Downtown Largo station March 14th, 12:15 p.m. - 3:15 p.m. Passport Toyota, 5001 Auth Way, Suitland March 17th, 10 a.m. - 1:30 p.m. Anyone who was exposed should monitor themselves for symptoms of measles for 21 days. Those who do develop symptoms should call their health care providers prior to going into a facility for an appointment in order to help the facility prevent others from being exposed to measles. For more information about the measles and this incident click here. ...read more read less