Think ticks are just a summer problem? Think again. Experts warn that these pesky, disease-carrying critters can latch onto you any time of year—especially after outdoor activities like hiking or gardening. While summer gets most of the attention (because, let’s face it, we’re all outside more then), staying vigilant year-round is key to avoiding infections like Lyme disease.

Public health experts are sounding the alarm: as temperatures climb due to climate change, ticks are thriving and spreading, leading to more cases of Lyme disease and other lesser-known tick-borne illnesses. Warmer winters and longer warm seasons are giving these pests more time to multiply and expand their habitats—meaning more people are at risk.