Canadian health experts and researchers are warning of a significant increase in tick-borne illnesses across the country this month [1].

This surge represents a growing public health challenge as changing environmental conditions allow disease-carrying ticks to migrate into new regions. The expansion increases the likelihood of human exposure and complicates diagnostic efforts for medical professionals.

Researchers said that while Lyme disease remains a primary concern, anaplasmosis is now the second-most common tick-borne disease in Canada [3]. This trend is being observed nationwide, with specific reports of increased activity in provinces such as Nova Scotia [4].

Climate change is the primary driver behind this shift. Warmer temperatures and altering weather patterns are expanding the natural habitats where ticks thrive, allowing them to survive in areas that were previously too cold for their populations to sustain [5].

Health experts featured by CTV News said the rise in these illnesses requires increased public awareness and vigilance. Because anaplasmosis can mimic other infections, early detection and knowledge of exposure are critical for effective treatment [1].

Concerns have also been raised regarding the sustainability of the research required to track these trends. Some experts said that the end of funding for certain research networks could hinder the ability to monitor the spread of these diseases in real time [4].

Medical professionals continue to advise Canadians to use repellent and perform thorough tick checks after spending time in forested or grassy areas to mitigate the risk of infection [1].

“Anaplasmosis is the second-most common tick-borne disease in Canada”

The rise of anaplasmosis alongside Lyme disease indicates that Canada's tick-borne disease profile is diversifying. As climate change shifts ecological boundaries, the healthcare system must adapt to diagnose a wider array of pathogens in regions where they were previously unknown, while simultaneously securing long-term funding for epidemiological surveillance.