Tick Populations Expand, Bringing New Disease Concerns

Why it matters locally: Maryland, with its diverse ecosystems including extensive forests and parklands, is particularly susceptible to changes in tick populations and the emergence of new tick-borne diseases. Public health officials across the state will be closely monitoring these developments to assess potential impacts on residents.

Ticks are expanding their geographic range, introducing new public health concerns, according to Holly Gaff, a mathematical ecologist at Old Dominion University. While certain areas of the country have long dealt with tick populations, researchers now observe them in previously unaffected regions. The expansion of tick habitats brings with it new threats. Gaff, who studies tick ecology, noted these changes during a discussion with William Brangham concerning the parasites' broader distribution. Scientists continue to monitor these developments to understand the full scope of the expanded tick presence and the associated health implications.