A measles case was confirmed by a person traveling to Washington, Colombia County, on the Amtrak train, according to the DC Health Ministry of Health.
The person visited numerous places while contagious, including on March 19, on March 19 on March 19, as well as Medstar Emergency Aid in Adams Morgan on March 22, the DC Health said in a press release on Tuesday.
DC Health said he was currently working to inform the people who were in these places that they may have been exposed.
Health officials say that people who are not “immunized” are the most risky of infection. This includes those who have been unvaccinated or have never contracted before.
DC Health did not immediately respond to ABC News’ request for comment.

AMTRAK train arrives at Union Station, November 22, 2023, in Washington, Colombia County
Kevin Dietsch/Getty Images
“DC Public Health notified AMTRAK of a confirmed measles case to a customer traveling on Amtrak Train 175 from New York to the Washington Union station on Wednesday, March 19,” Amber said on Wednesday. “AMTRAK addresses directly to customers who have been on this train to notify them of a possible exposure.”
The Ministry of Health and Mental Hygiene in New York also made a statement on Wednesday, stating that it was “aware” of the confirmed case and the patient’s journey.
“Public health agencies routinely exchange information when exposures are happening in other localities and we communicate with the DC Ministry of Health on this issue,” the statement said in part.
CDC has confirmed 378 cases of measles so far this year in at least 17 states: Alaska, California, Florida, Georgia, Kansas, Kentucky, Maryland, Michigan, New Jersey, New York, Ohio, Pennsylvania, Road Island, Texas, Vermont. This is probably a shortage due to a delay in countries taking into account cases of the Federal Health Agency.
Health officials encourage those who have never been vaccinated to receive the vaccine for measles, mumps, rubella (MMR).
Currently, CDC recommends that people receive two doses of vaccines, the first aged 12 to 15 months, and the second between 4 and 6 years. One dose is 93% effective and two doses are 97% effective, CDC says. Most vaccinated adults do not need a booster.
Matt Foster and Oton Leva have contributed to this ABC News report.