NBC5 – Chicago
By NBC Chicago Staff • Published April 29, 2026 • Updated on April 29, 2026 at 11:57 am
A rise in lyme disease-positive ticks and an increase in emergency room visits due to bites this spring has sparked plenty of concerns — and theories — about why such increases are happening.
While scientists argue climate change and other related factors are behind the spike, unsubstantiated social media claims are spreading rapidly.