Introduction Lyme disease isn’t just a concern for humans—dogs are also vulnerable to this potentially serious tick-borne illness. Caused by the bacterium Borrelia burgdorferi and transmitted primarily by the blacklegged tick (deer tick), Lyme disease can lead to long-term health complications in dogs if left untreated. This article will help dog owners understand how Lyme disease affects their pets, what symptoms to look for, how to prevent infection, and when to seek veterinary care. What Causes Lyme Disease in Dogs? Lyme disease is caused by the spiral-shaped bacterium Borrelia burgdorferi. It’s transmitted when an infected tick attaches and feeds on…