Rising Migration of Ticks Threatens Increased Disease Transmission Risks

Recent studies highlight the alarming migration of tick populations into new regions, significantly elevating the risks of tick-borne diseases. As climate change shortens winter hibernation periods, ticks remain active for longer durations, enhancing their ability to hitch rides on wildlife, pets, and humans. Biologists such as Grant Hokit have been conducting field surveys in Montana, using simple yet effective tools to collect ticks from grasses and shrubs along hiking trails. These efforts have led to the discovery of deer ticks in Montana for the first time, a species notorious for transmitting Lyme disease. The spread of deer ticks and other species into new areas underscores the importance of monitoring and identifying these vectors to protect public health.

Understanding which tick species are present is crucial for healthcare providers, especially since not all ticks carry diseases. For example, the presence of deer ticks increases the likelihood of Lyme disease, while other ticks might carry different pathogens like Rocky Mountain spotted fever. Surveillance programs, including field collections and laboratory testing, are vital for mapping tick distribution and pathogen prevalence. However, funding limitations hinder comprehensive monitoring across all regions, often relying on passive reporting from residents, vets, and doctors.

In Montana, the state health department actively engages in tick surveillance, collecting specimens from various counties to assess potential health risks. Researchers analyze climate and vegetation data to predict where ticks could establish new populations, particularly in areas like the Flathead Valley. These measures aim to inform local populations and healthcare professionals about emerging tick threats and the potential for new disease outbreaks.

The increase in tick range due to climate factors emphasizes the need for ongoing research, better funding, and public awareness to mitigate future health risks associated with tick-borne diseases.

source: https://medicalxpress.com/news/2025-09-migrating-disease-tracked-quickly.html