Tick bites hit highest levels since 2017 as Lyme disease cases rise due to climate change and expanding tick habitats. Learn ...

Alpha-gal syndrome is an immune system misfire developed after being exposed to a tick bite. It is rapidly spreading across the United States and globally. Alpha-gal syndrome is actually an allergy to ...

Inside Dr. Douglas Norris' lab at the Johns Hopkins Bloomberg School of Public Health sits a healthy stack of envelopes — not with letters inside, but with ticks.