The Illinois Department of Health reports that on February 22, 2019, an Illinois resident with a now confirmed diagnosis of measles was on a flight that arrived in Concourse B at Chicago Midway Airport. The passenger was unvaccinated and infectious on that day.
People may have been exposed to measles if they were at Midway Airport on February 22, 2019 between 9 pm and midnight. This individual also sought treatment in the emergency department at Northwestern Medicine Delnor Hospital on February 24, 2019. People who were in the emergency department between 11:45 am and 2:15 pm also may have been exposed, as well as individuals who were in Northwestern Medicine Delnor Hospital from 4:00-6:15 pm on February 24, 2019 and from 10:00 am – 1:00 pm on February 25, 2019. These are the only known public locations in Illinois where exposures occurred.
If infected, you could develop symptoms as late as March 20, 2019.
“Measles is highly contagious. However, two doses of measles vaccine are about 97 percent effective in preventing measles,” reminds IDPH Director Dr. Ngozi Ezike. “We urge everyone to make sure they and their family members are up-to-date on measles/mumps/rubella (MMR) vaccine and all other age-appropriate immunizations, especially if you are traveling to other countries where measles is regularly found. Getting vaccinated not only protects you, it protects others around you who are too young to get the vaccine or cannot receive it for medical reasons.”