A passenger with measles traveled on Amtrak's westbound Empire Builder, which departed Chicago on Sept. 23 and arrived in Minot the morning of Sept. 24. This created a potential exposure risk for passengers and anyone at the station while the train was scheduled to be in Minot from approximately 9:06 to 9:51 a.m. CT. The passenger reported getting off the train to use the restroom at the Minot sta…