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Lyme Disease Photo Gallery

Ticks, Spirochetes, And Hosts Which Cause Lyme Disease

From Carol & Richard Eustice, About.com

Updated February 19, 2009

About.com Health's Disease and Condition content is reviewed by the Medical Review Board

According to the National Institute of Allergy and Infectious Diseases, Lyme disease was first recognized in 1975 after researchers investigated why unusually large numbers of children were being diagnosed with juvenile rheumatoid arthritis in Lyme, Connecticut, and two neighboring towns. The researchers found that tiny deer ticks infected with a spiral-shaped bacterium or spirochete (Borrelia burgdorferi) were responsible for the outbreak of arthritis in Lyme.

The first symptom of Lyme disease is usually a red rash known as erythema migrans, often accompanied by flu-like symptoms. There can also be other consequences of Lyme disease including arthritis, neurological symptoms, heart problems, and more.

Sources: Centers for Disease Control and Prevention (CDC); Public Health Image Library (PHIL)

Images 13-21 of 21

anal groove positon on tickAnal groove close up tick mouth partsTypical tick mouth partsBasis capituli of hard tickBasis capituli Spirochete B. burgdorferiSpirochete
Photomicrograph of Borrelia burgdorferiBorrelia burgdorferiHistopathology - B.burgdorferiBorrelia burgdorferiwhitetail deerWhitetail deerWhite-footed mouseWhite-footed mouse
facial palsyFacial palsy
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