What is Lyme Disease?

Lyme disease (LD) is a multi-system bacterial infection caused by a the spirochete Borrelia burgdorferi (Bb). The pathogen was named in honor of the discoverer and a founding board member of the Lyme Disease Foundation, Willy Burgdorfer, PhD, MD (hon).

Research has proven that the bacterium that causes Lyme disease has been in the U.S. for over 100 years.

These spirochetes are maintained in nature in the bodies of wild animals and is transmitted from one animal to another through the bite of an infective tick. Humans and pets are incidental hosts to ticks.

The body does not maintain a natural immunity to the disease. Thus, a person can be reinfected with the disease on subsequent tick bites.

Next: How is Lyme Disease Transmitted?

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