Lab analyst Diana Wendelin gently adjusts a slide under a microscope. An enlarged image of a tick comes into focus on her computer screen. “So, the first thing I'm looking at is called the scutum.

Preliminary state figures show approximately 25,000 Lyme cases in 2025, nearly 16% more than the 21,632 recorded in 2024.

On Wednesday, a congressional advisory committee sounded the alarm on Lyme and other emerging tick-related illnesses saying they have become "a serious and growing threat to public health." The ...

Blacklegged tick populations in New England and New York aren’t exploding, but the number of ticks carrying disease-causing pathogens has risen sharply over recent decades. Research led by Dartmouth ...

The tick population is “exploding” all across the United States, as spurred by warming temperatures. And Pennsylvania was found to have some of the highest rates of ticks in the country. According to ...

Blacklegged tick populations in New England and New York aren’t exploding, but the number of ticks carrying disease-causing pathogens has risen sharply over recent decades.