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Updated: Jun 12, 2026

Detecting the Lyme Disease Spirochete, Borrelia Burgdorferi, in Ticks Using Nested PCR
Published on: February 4, 2018
Lyme disease
Thomas S Murray1, Eugene D Shapiro
1Department of Pediatric, Yale University, New Haven, CT 06520-8064, USA.
Abstract:
Lyme disease, caused by the spirochete Borrelia burgdorferi, is the most common vector-borne disease in the United States. The clinical presentation varies depending on the stage of the illness: early disease includes erthyma migrans, early disseminated disease includes multiple erythema migrans, meningitis, cranial nerve palsies, and carditis; late disease is primarily arthritis. The symptoms and signs of infection resolve in most patients after treatment with appropriate antimicrobials for 2 to 4 weeks. Serologic testing should be used judiciously as it often results in misdiagnosis when performed on blood from patients with a low prior probability of disease and those with only nonspecific symptoms such as fatigue or arthralgia without objective signs of infection.
Insights
Lyme disease, a common tick-borne illness, presents differently in early and late stages. Prompt diagnosis and appropriate antibiotic treatment are crucial for recovery, while judicious use of serologic testing prevents misdiagnosis.
Area of Science:
- Infectious Diseases
- Microbiology
- Epidemiology
Background:
- Lyme disease is the most prevalent vector-borne illness in the U.S.
- Caused by the spirochete Borrelia burgdorferi.
- Clinical manifestations vary by disease stage: early (erythema migrans), early disseminated (multiple EM, meningitis, palsies, carditis), and late (arthritis).
Purpose of the Study:
- To describe the clinical presentation and treatment of Lyme disease.
- To emphasize the importance of judicious serologic testing.
Main Methods:
- Review of clinical presentations based on disease stage.
- Discussion of antimicrobial treatment efficacy.
- Analysis of serologic testing utility and limitations.
Main Results:
- Most patients recover with 2-4 weeks of appropriate antimicrobial treatment.
- Serologic testing can lead to misdiagnosis in low-probability cases or those with nonspecific symptoms without objective signs.
Conclusions:
- Lyme disease requires timely diagnosis and treatment.
- Careful consideration of clinical context is essential when interpreting serologic tests to avoid misdiagnosis.
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