Introduction to West Nile Virus
A suburban Cook County resident in their 60s has died after contracting West Nile virus, marking the first virus-related death reported this year in Illinois, health officials announced Wednesday.
Confirmation of the Death
Lab testing has confirmed that the virus was a contributing factor in the resident’s death, the Cook County Department of Public Health said in a statement. The health department did not provide details about what community the resident lived in, their name, or how they contracted it.
Cases of West Nile Virus
Since the start of the surveillance period on May 11, suburban Cook County has recorded 33 human cases of West Nile virus, which the department said is nearly double last year’s count. Of those cases, 22 were neuroinvasive, meaning the virus impacted a patient’s central nervous system. By comparison, 19 cases and five deaths were reported in suburban Cook County last year. Statewide, Illinois logged 69 cases and 13 fatalities related to the virus in 2024.
Comparison with Previous Years
Chicago reported its first human cases of West Nile virus for 2025 in August. The majority of West Nile virus cases involve little to no symptoms and may go unreported, so the health department emphasizes that case counts are underestimates.
Precautions and Prevention
“The year’s first death from West Nile virus in Illinois is a sobering reminder that mosquito-borne illnesses are still with us,” said Illinois Department of Public Health Director Dr. Sameer Vohra. “It’s essential to take appropriate precautions as the weather remains warm.” CCDPH’s Dr. Kiran Joshi said in a statement all residents should take steps to protect themselves from the virus, especially seniors, who face a higher risk for severe illness and death.
Reducing Mosquito Exposure
“As long as mosquitoes are flying around, people are at risk of mosquito bites and of contracting West Nile virus,” Joshi said in the statement. Health officials are urging residents to “Fight the Bite” by reducing mosquito exposure, using insect repellent and reporting problems with standing water. Residents should look for EPA-registered insect repellents that contain 20% to 50% DEET for adults and 20% to 25% DEET for children.
Symptoms of West Nile Virus
While most people who become infected experience no symptoms or mild ones, health officials said severe cases can cause high fever, neurological damage or death. Symptoms that do occur may show up within three to 15 days after infection, according to the health department.
Conclusion
The first death from West Nile virus in Illinois this year is a reminder of the importance of taking precautions against mosquito-borne illnesses. Residents, especially seniors, should be aware of the risks and take steps to protect themselves. By reducing mosquito exposure and using insect repellent, individuals can significantly decrease their risk of contracting West Nile virus.
FAQs
- Q: What is West Nile virus?
A: West Nile virus is a mosquito-borne illness that can cause symptoms ranging from mild to severe, including high fever, neurological damage, or death. - Q: How can I prevent West Nile virus?
A: You can prevent West Nile virus by reducing mosquito exposure, using EPA-registered insect repellents, and reporting problems with standing water. - Q: Who is at risk for severe illness from West Nile virus?
A: Seniors and individuals with certain medical conditions are at a higher risk for severe illness and death from West Nile virus. - Q: What should I do if I suspect I have West Nile virus?
A: If you suspect you have West Nile virus, you should consult a healthcare professional for proper diagnosis and treatment.
