Tick-Borne Illnesses on the Rise in Northern Illinois
Tick-Borne Illnesses on the Rise in Northern Illinois
US · Published May 15, 2026
Northern Illinois is experiencing an increase in tick-borne illnesses as tick activity rises during the warmer months.
According to the Illinois Department of Natural Resources (IDNR), the state is home to 13 tick species, with six commonly encountered by humans, including the Lone Star Tick, which can transmit the Heartland Virus.
The Centers for Disease Control and Prevention (CDC) reports that ticks bite approximately 31 million Americans annually, with Illinois accounting for over 620,000 bites.

Why It's Important?

The rise in tick activity poses health risks to residents of Northern Illinois, particularly from the Lone Star Tick, which can transmit the Heartland Virus. Symptoms of the virus include fever, fatigue, and joint pain, and some cases require hospitalization. Additionally, the Lone Star Tick can trigger a rare allergy to meat and dairy products. With no available vaccine or treatment, the public is urged to take preventive measures to avoid tick bites. The increase in tick-borne illnesses highlights the need for awareness and caution during outdoor activities.

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