There’s been a very noticeable increase in the tick population, both in Pennsylvania and outside of it. And with this rise in the number of ticks comes growing concern over tick-borne illnesses.

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.

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 ...

America's tick problem, once an itchy nuisance, now looks more like a public-health failure, argues Sarah Zhang in a new piece for the Atlantic. Lyme infections have more than doubled since 2000, ...

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 ...

Summer is ending, but tick season is not. Health officials warned Tuesday that autumn brings another peak in tick activity -- ...

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.