A confirmed case of measles in Kaneland High School has health authorities on alert for potential additional cases and spreading the word to any who may have been exposed to the disease.
The Kane County Health Department (KDHC) is investigating a confirmed case of measles in a Kaneland High School student who was unvaccinated against measles. According to the department, the victim is no longer infectious.
According to a report from WBBM Radio, students at the school had an e-learning day Tuesday because of concerns over possible exposure.
“A spokesperson for Kaneland School District 302 tells WBBM, a student tested positive for measles prompting the e-learning day for students who attend Kaneland High School and Fox Valley Career Center.”
Potential Exposure
KCHD has identified the following locations and dates where individuals may have been exposed to measles:
- Kaneland High School, 47W326 Keslinger Road, Maple Park, IL 60151 on August 18, 2026: Exposure may have occurred throughout the school day.
- Next Generation Pediatric Clinic, 107 S. McLean Blvd., Suite B, South Elgin, IL 60177 on August 21, 2026: Exposure may have occurred between 12:30 and 4 p.m.
- Additional exposure information may be released as the investigation continues and information is confirmed.
What You Should Do If You May Have Been Exposed
The KCHD has posted guidelines if you were at one of the identified locations during the potential exposure period:
- Determine whether you are protected against measles. Evidence of immunity may include documentation of the recommended doses of MMR vaccine, laboratory evidence of immunity, or laboratory confirmation of previous measles infection. If you were born before 1957, you may also have evidence of immunity based on your birth year, although your healthcare provider may recommend vaccination depending on your circumstances.
- If you are unprotected and were potentially exposed, stay home and quarantine for 21 days from the date of potential exposure unless you can provide evidence of immunity. KCHD or another public health authority may provide specific quarantine instructions based on your circumstances.
- If you cannot locate your vaccination records, contact your healthcare provider, school, previous healthcare providers, or IDPH’s vaccination records portal, Vax Verify. Your provider can discuss whether vaccination or blood testing is appropriate.
- Contact your healthcare provider if you are unsure whether you are protected against measles.
- Monitor for symptoms for 21 days after your potential exposure.
- If you develop symptoms and believe you may have been exposed to measles, call your healthcare provider before going to a medical office, urgent care or emergency department. This allows the healthcare facility to make appropriate arrangements to protect other patients and healthcare workers.
What Are the Symptoms of Measles?
Measles is a highly contagious respiratory illness. According to the KCHD, symptoms may include:
- Fever
- Cough
- Runny nose
- Red or watery eyes
- Rash
Symptoms generally develop 7–21 days after exposure.
For questions about measles, please call the Kane County Health Department’s Measles Information Line at 331-240-3311, staffed from 9am to 4pm Monday through Friday.
