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CSF oligoclonal bands in Lyme Disease

In Lyme Disease (Lyme borreliosis, Borrelia burgdorferi infection), the direction of change for CSF oligoclonal bands, also described as Intrathecal IgG synthesis, is inconsistent across studies that used Normal CSF as the reference group. Clinically, it has been associated with CNS immune activation subset. This entry summarises Lantos et al. 2021. Group-level associations like this do not translate into an individual diagnostic cut-off.

↕ InconsistentCSF

Summary

Direction in Lyme Disease↕ Inconsistent — reported as both higher and lower across studies, with no consistent direction
CategoryCSF
Also described asIntrathecal IgG synthesis
Compared againstNormal CSF
Associated symptomsCNS immune activation subset
Test typeTissue / pathology test
SourceLantos et al. 2021 — doi:10.1016/j.idc.2021.05.001
Condition atlasLyme Disease Biomarker Atlas

Other conditions where CSF Oligoclonal Bands is reported

See the cross-condition hub: CSF Oligoclonal Bands across conditions.

Related CSF markers in Lyme Disease

Full list: Lyme Disease Biomarker Atlas.

Frequently asked questions

Is CSF oligoclonal bands high or low in Lyme Disease?

Mixed. Some studies report higher and others lower CSF oligoclonal bands in Lyme Disease compared with Normal CSF, so no single direction is established. Source: Lantos et al. 2021.

What symptoms is CSF oligoclonal bands associated with in Lyme Disease?

The cited literature associates this marker with CNS immune activation subset. These are population-level associations and do not mean the marker causes the symptoms.

Which test measures CSF oligoclonal bands?

It is measured as a tissue / pathology test. Many of the cited studies used research-grade assays, so clinical availability may vary.

Is one abnormal CSF oligoclonal bands result diagnostic of Lyme Disease?

No. No single biomarker is diagnostic of Lyme Disease. CSF oligoclonal bands findings come from group comparisons, overlap considerably between patients and controls, and vary with study design, timing and comparison group. A result should be interpreted by a clinician alongside symptoms, history and other tests.

Is CSF oligoclonal bands specific to Lyme Disease?

No. The same marker is also reported in Multiple Sclerosis in this atlas, so it reflects shared biology (for example inflammation or vascular stress) rather than a condition-specific signature.

Cite this page

Open Source Medicine Foundation. (2026). CSF oligoclonal bands in Lyme Disease: direction, evidence and what it means. OSMF Research Tracker. Retrieved October 7, 2026, from https://research.opensourcemed.info/biomarkers/lyme/csf-oligoclonal-bands.html
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Last reviewed: 2026-06-29 · Page generated from lyme.json · Browse: Lyme Disease atlas · Biomarker Index · All marker pages

Disclaimer: This page is an educational synthesis of published, peer-reviewed research and is not medical advice. Biomarker findings vary across studies with case definitions, comparison groups, timing and assay methods. Direction of change reflects the predominant finding in the cited source and does not establish a diagnostic threshold. Discuss any test result with a qualified clinician.