Introduction Most people associate tick bites with Lyme disease. But ticks can carry and transmit multiple pathogens, sometimes at the same time, leading to what’s known as tick-borne co-infections. These infections can complicate diagnosis, delay treatment, and increase the severity of symptoms. In this article, we’ll explore the most common tick-borne co-infections, how they’re transmitted, symptoms to watch for, testing, treatment options, and how to protect yourself. What Are Tick-Borne Co-Infections? A co-infection occurs when a tick transmits more than one disease-causing pathogen in a single bite. The most common tick species responsible for co-infections in the U.S. is the…