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Updated: Jul 28, 2026

Detecting the Lyme Disease Spirochete, Borrelia Burgdorferi, in Ticks Using Nested PCR
Published on: February 4, 2018
Borrelia meningitis in Denmark
Abstract:
We studied 23 patients with borrelia meningitis, a tick-borne spirochetosis increasingly recognized in Denmark. The disease showed a seasonal incidence from June to December. Twenty one patients experienced a painful sensory radiculitis, in 17 cases followed by a predominantly cranial mononeuritis multiplex mainly affecting the facial nerve (Bannwarth's syndrome). Three patients had focal CNS involvement in the form of a transverse myelitis, a focal encephalitis and a disseminated leucoencephalopathy, respectively. The CSF showed invariably lymphocytic pleocytosis and elevated spinal protein concentration. Measuring borrelia antibodies in the CSF seemed of higher diagnostic sensitivity than in serum. Penicillin therapy was effective even in cases with focal CNS lesions.
Insights
Borrelia meningitis, a tick-borne illness, often presents with painful nerve inflammation and can affect the central nervous system. Early penicillin treatment is effective for this condition, even with severe neurological involvement.
Area of Science:
- Neurology
- Infectious Diseases
- Tick-borne Illnesses
Background:
- Borrelia meningitis is an emerging tick-borne spirochetosis in Denmark.
- The study focuses on the clinical presentation and treatment of borrelia meningitis.
Purpose of the Study:
- To describe the clinical features of borrelia meningitis.
- To evaluate diagnostic methods and treatment efficacy.
Main Methods:
- Study included 23 patients diagnosed with borrelia meningitis.
- Clinical data, CSF analysis, and serological tests were analyzed.
- Treatment outcomes with penicillin were assessed.
Main Results:
- Seasonal incidence observed from June to December.
- 21 patients had painful sensory radiculitis, often followed by cranial mononeuritis multiplex (Bannwarth's syndrome).
- Three patients presented with focal central nervous system (CNS) involvement, including transverse myelitis, encephalitis, and leucoencephalopathy. CSF invariably showed lymphocytic pleocytosis and elevated protein. CSF antibody testing was more sensitive than serum testing.
Conclusions:
- Borrelia meningitis presents with diverse neurological manifestations, including radiculitis and CNS lesions.
- CSF analysis and antibody detection are crucial for diagnosis.
- Penicillin therapy demonstrates effectiveness in treating borrelia meningitis, including cases with focal CNS lesions.
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