Tick populations in Northern Illinois hit an all-time high, raising Lyme disease risks.

Tick populations in Northern Illinois are at an all-time high, with residents advised to be cautious due to the risk of diseases like Lyme disease and Rocky Mountain spotted fever. The increase is linked to climate change, more host animals, and reduced pesticide use. To protect against tick bites, the Illinois Department of Natural Resources recommends using repellents, covering skin, and checking for ticks after outdoor activities.