An early morning rush at O'Hare International Airport just got a lot more memorable for some travelers, and not in a good way. Chicago health officials say an international traveler with measles may have exposed other passengers in Terminal 5 during a window last Wednesday between 5:50 a.m. and 9:30 a.m. The city is now working to track down people who may have been in close contact.
The Chicago Department of Public Health announced the case Tuesday and said the traveler arrived last Wednesday and was likely exposed abroad based on the timing of illness. As reported by FOX 32 Chicago, the department is coordinating with health care providers to identify close contacts and determine whether post-exposure prophylaxis should be offered to people who face a higher risk of complications.
"Measles is highly contagious, but it is also highly preventable through vaccination," acting Commissioner Fikirte Wagaw said in the city statement, according to FOX 32 Chicago. Health officials are urging anyone who passed through Terminal 5 during that time frame to review their vaccination records and contact a health care provider if they are not sure they are protected.
Symptoms, timing and post-exposure options
Measles symptoms typically start about 7 to 14 days after infection, although they can take up to 21 days to appear. They include a high fever, cough, runny nose, red or watery eyes and a rash that usually begins on the face, according to the Centers for Disease Control and Prevention. The CDC notes that an MMR vaccine given within 72 hours of exposure may prevent or lessen illness for people who are susceptible, and immune globulin can be used within six days of exposure for those who cannot receive the vaccine.
What travelers should do
Anyone who was in Terminal 5 between 5:50 a.m. and 9:30 a.m. last Wednesday is advised to confirm that they have documentation of two MMR doses. If you are unsure about your immunity, health officials say to call a health care provider to talk about testing or vaccination. State guidance emphasizes calling ahead instead of walking into a clinic, so staff can plan how to evaluate you without risking additional exposures. For broader exposure guidance, see the Illinois Department of Public Health.
If you develop a fever, cough, red eyes or a rash within three weeks of being in Terminal 5 during the listed hours, contact your provider and tell them you may have been exposed so they can take precautions when you arrive. For more information on measles symptoms, vaccination and post-exposure steps, visit the Centers for Disease Control and Prevention.
