Cook County Department of Pulic Health Notice—Measles Exposure

The information below was provided by the City of Chicago and Cook County Department of Public Health. We wanted to be sure you received this information as soon as we received it. We believe this will be officially announced this evening.

On Thursday, March 27, the Cook County Department of Public Health announced a reported and confirmed case of measles. The individual visited 18 public locations with one being the Nederlander Theatre on Tuesday, March 19, 2019. The potential exposure time is 7:15 – 11:45 pm (two hours have been added to the time after the individual left, since the measles virus can linger in the air and on surfaces for two hours after an infected individual leaves the area).

We are contacting you as an employee of Broadway In Chicago at the theater that evening, please share with your local crew members working on the 19th.

Symptoms of measles include rash, high fever, cough, runny nose, and red, watery eyes. If individuals develop symptoms of measles, CCDPH recommends:
  • Calling a healthcare provider before going to a medical office or emergency department (so special arrangements can be made for evaluation, while also protecting other patients and medical staff from possible infection), and
  • Contacting their local health department. Cook County residents, contact CCDPH at 708-836-8699. Lake County residents, contact Lake County Department of Public Health at 847-377-8130. Chicago residents, contact Chicago Department of Public Health at 312-746-5380 and select option 1.

Most individuals are vaccinated routinely in childhood and are not at high risk. Of most concern are people who have not been vaccinated. Individuals who think they have been exposed should check with their healthcare provider about protection through prior vaccination. The healthcare provider will determine the need for testing if symptoms develop. If infected, individuals could develop symptoms up to 21 days following exposure.

Measles can cause serious complications such as pneumonia and encephalitis (swelling of the brain). Measles is easily spread through the air when someone coughs or sneezes. People can also get sick when they come in contact with mucus or saliva from an infected person. For more information about measles, visit

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