Lyme Disease — And The Ticks That Carry It — Spreads Across The U.S.

Lyme Disease — And The Ticks That Carry It — Spreads Across The U.S.

This undated photo provided by the U.S. Centers for Disease Control and Prevention (CDC) shows a blacklegged tick — also known as a deer tick. (CDC via AP)

In this undated photo provided by the U.S. Centers for Disease Control and Prevention (CDC), a blacklegged tick – also known as a deer tick. Diagnosing if a tick bite caused Lyme or something else can be difficult but scientists are developing a new way to catch the disease early, using a “signature” of molecules in patients’ blood. (CDC via AP)