Veterinary Technician Practice Exam 2026 - Free Veterinary Technician Practice Questions and Study Guide

The parasite responsible for transmitting Lyme disease is the tick. Specifically, the black-legged tick, also known as the deer tick (Ixodes scapularis), is the primary vector in the northeastern and north-central regions of the United States. Ticks are arachnids that attach to the skin of mammals, including humans and dogs, to feed on their blood. During this feeding process, if the tick is infected with the bacterium Borrelia burgdorferi, it can transmit this pathogen to the host, leading to Lyme disease.

Understanding the role of ticks in the transmission of Lyme disease is crucial for prevention and control. Unlike fleas, which primarily infest pets and can transmit other diseases, ticks are specifically linked to Lyme disease and require proper removal techniques due to their ability to remain attached and feed for extended periods. Mites, while also ectoparasites, do not carry Lyme disease, and worms primarily refer to internal parasites that do not play a role in the transmission of this particular disease. Recognizing the correct vector is essential for appropriate veterinary and public health measures in addressing Lyme disease.