climate change

Toronto, June 1, 2025 — Tick-borne illnesses, particularly Lyme disease, are spreading into previously unaffected parts of Canada, triggering growing concern among public health experts. The increase is attributed to changing climate conditions, including warmer winters and longer tick activity seasons.Experts have confirmed a noticeable expansion of black-legged ticks (commonly known as deer ticks) into new areas such as parts of Ontario, Quebec, Nova Scotia, and British Columbia. These regions were once considered low-risk but are now reporting increasing numbers of tick encounters and Lyme disease cases.According to recent health data, Ontario recorded 1,865 confirmed Lyme disease cases in 2023,…