Two travelers infected with measles passed through the same terminal at O'Hare International Airport in Chicago over the course of two days, according to a report from the Chicago Tribune.
Here are five things to know.
1. The first traveler landed at O'Hare between 8:30 a.m. and noon on Jan. 9. This individual then visited an office plaza in Skokie, Ill., on Jan. 10. At various times between Jan. 10 and Jan. 13, the individual visited the emergency department at three Illinois hospitals: NorthShore Evanston Hospital, NorthShore Skokie Hospital and Advocate Lutheran General Hospital Park Ridge. The hospitals are working to notify patients and staff who may have been exposed to the virus.
2. The second infected traveler landed at the airport Jan. 10. This individual stayed at the airport from 6:30 a.m. to 1:00 p.m. before departing on a domestic flight.
3. Both travelers landed at the airport's international terminal and were infected with the measles prior to their arrival. The Illinois Department of Public Health has not disclosed the nation the individuals traveled from or if they arrived from the same country, according to the Tribune.
4. Various local health departments are working to contact individuals who may have been exposed to the infected travelers, whether on the flights or in the airport.
5. The measles is a highly transmissible virus characterized by fever, runny nose, cough and a rash that spreads all over the body. Two doses of the mumps, measles, rubella vaccine is 97 percent effective at preventing the measles, according to the CDC.
More articles on infection control:
5 risk factors for norovirus outbreaks in hospitals
Patient sues Northwestern Memorial for reusing syringe on him
Flu outbreak spurs Texas school district to close for 1 week