The number of confirmed cases of Lyme disease in the United States has seen a significant increase, and recent changes in tracking rules are believed to be the cause. The Council of State and Territorial Epidemiologists and the Centers for Disease Control and Prevention updated the definitions of Lyme disease, leading to a surge in reported cases.

According to the latest data, reported cases of Lyme disease rose by 68.5% in 2022 after the new definition went into effect. This change has shed light on the true prevalence of the tick-borne disease, making it easier to understand and track.

Lyme disease is the most prevalent and well-known tick-borne illness in North America. With the updated definitions, health authorities are better equipped to identify and report cases accurately, providing a clearer picture of the disease’s impact.