MS and Lyme Disease: 100+ Years of Research on Spirochetes in the Brain and Spinal Fluid

For more than 100 years, scientists have been finding spirochete bacteria and parasites in the brains and spinal fluid of people diagnosed with multiple sclerosis (MS).

Yet almost no one with MS has ever been told this.

Instead, most patients hear a very simple explanation:

“Your immune system is attacking your myelin.

We don’t know why.

And the best treatment is to suppress the immune system.”

But when you actually go back through the science, a very different story appears.

Over the past century, researchers have reported findings showing:

• Spirochete bacteria infections discovered in the brains and spinal fluid of MS patients
• Lyme disease producing the same spinal fluid patterns used to diagnose MS — including oligoclonal bands
• Parasites and bacteria documented inside MS brain and nerve tissue.

Spinal fluid from people with Lyme infection in the brain and spinal cord can look very similar to spinal fluid from people diagnosed with MS on routine tests. In most patients diagnosed with MS, the spinal fluid is never checked for Lyme, so doctors may miss when a Lyme infection is contributing to or driving those abnormalities.

When researchers test spinal fluid in proven Lyme infection of the nervous system, up to 9 out of 10 patients show oligoclonal bands — immune proteins that specifically target Lyme bacteria.

So the very band pattern many patients are told is “proof of MS” can also appear when bacteria infect the nervous system.

We will also look at something neurologists rarely mention.

A 2017 MS Society–funded study published in the New England Journal of Medicine found that an antibiotic called minocycline reduced the risk that people with a first MS attack would go on to develop definite MS.

When you place all of this evidence together — across more than a century of research — it raises an important question:

Is multiple sclerosis an autoimmune disease…

or could it be a chronic infection of the nervous system?

 

MS and Lyme Disease Look Remarkably Similar

Many of the hallmark features used to diagnose MS are also seen in Lyme disease affecting the nervous system, a condition called Lyme neuroborreliosis.

These overlapping features include:

• White-matter lesions on MRI
• A relapsing-remitting pattern of symptoms
• Oligoclonal bands in the spinal fluid.

Those oligoclonal bands are important.

Many people with MS are told these bands prove they have MS.

But oligoclonal bands simply show that the immune system is responding to something inside the central nervous system.

They do not reveal what that “something” is.

In Lyme infection of the nervous system, up to about 90% of patients can have oligoclonal bands in their spinal fluid, just like people with MS.

When researchers test those bands against Borrelia burgdorferi, the bacterium that causes Lyme disease, they often find that the antibodies inside the bands specifically target Borrelia.

One classic study found that 78–100 percent of patients with Lyme infection of the nervous system had Borrelia-specific oligoclonal bands in their spinal fluid.

So the very spinal fluid pattern that patients are told is “classic MS” can also be classic Lyme infection of the nervous system.

The difference is that most MS work-ups never test oligoclonal bands against Borrelia antigens.

So the question is never asked.

 

Neurosyphilis: The First Proof

In the early 1900s, neurologists were studying a devastating disease called neurosyphilis.

Syphilis is caused by a spirochete bacterium called Treponema pallidum.

When this infection reaches the brain and spinal cord, it can cause a condition called general paresis.

Patients developed symptoms such as:

• Walking and balance problems (gait disorders, staggering walk, coordination trouble)
• Weakness or partial paralysis in the limbs
• Numbness and abnormal sensations
• Vision problems from optic nerve involvement
• Cognitive decline, confusion, and personality changes.

When scientists performed autopsies, they found massive numbers of spirochetes in the brain.

Using silver staining techniques, researchers saw dense colonies of spirochetes forming plaques and filamentous structures within brain tissue.

These colonies caused:

• Neuronal loss
• White-matter damage

In other words, the damage looked remarkably similar to what we later began seeing in multiple sclerosis.

More than a century ago, neurosyphilis proved something critical:

A chronic spirochete infection in the brain can cause demyelination and progressive neurological disease.

 

Early MS Research Begins Finding Spirochetes

Once scientists understood what spirochetes could do in the nervous system, researchers began asking a natural question:

Could something similar be happening in multiple sclerosis?

As early as 1911, a paper published in The Lancet reported spirochete-like organisms in patients with MS.

Over the following decades, several investigators reported similar findings.

A later NIH review titled “The Spirochete and Multiple Sclerosis” summarized this work and described research by Ichelson, who reported finding spirochete-like forms in about 78 percent of MS cases he examined, while such organisms were rare in control subjects.

Researchers also performed animal experiments.

When animals were infected in the nervous system with spirochetes, they developed MS-like lesions and demyelination.

By the middle of the 20th century, the idea that MS might represent a chronic spirochete infection of the brain and spinal cord was being taken seriously.

Scientists simply had not yet identified the exact organism responsible.

 

1957: Spirochetes Cultured from MS Spinal Fluid

In 1957, a Philadelphia bacteriologist reported something remarkable.

She successfully cultured spirochetes from the spinal fluid of MS patients.

Out of 76 spinal fluid samples from MS patients, spirochetes grew in 59 samples — about 78 percent.

None of the control samples produced these organisms.

Her conclusion was direct.

She stated that multiple sclerosis appeared to be caused by a spirochete, and that early treatment against the organism might lead to improvement.

This discovery was significant enough that it was reported in Time magazine.

However, as the autoimmune theory of MS became dominant, this entire line of research gradually faded from mainstream discussion.

Importantly, the findings were never disproven.

They were simply left behind.

 

The 1980s: MS Described as a Chronic Spirochetal Infection

In the 1970s and 1980s, scientists discovered the bacterium responsible for Lyme disease — Borrelia burgdorferi.

This discovery renewed interest in the older spirochetal hypothesis of MS.

In 1988, researchers published a paper titled:

“Multiple sclerosis is a chronic central nervous system infection by a spirochetal agent.”

The authors argued that MS strongly resembles neurosyphilis and Lyme disease in several ways:

• Long latency — the microbe can remain quiet in the body for years
• A relapsing clinical course
• Similar pathological changes in nervous tissue.

They also emphasized an important point:

Even if MS involves immune activity, that does not rule out infection as the trigger.

All infections activate immune responses.

Some researchers proposed that oral spirochetes — bacteria commonly living in the mouth — might invade the central nervous system and produce the same inflammatory damage seen in MS.

They based this hypothesis on several observations:

• Microscopic studies showing germ-like structures in MS lesions
• Early attempts to culture microbes from MS tissue
• Animal infection studies producing MS-type neurological damage.

Putting these observations together, they suggested something simple but profound:

MS may not be the body randomly attacking itself.

Instead, a long-term infection may be driving the immune reactions and damage we call MS.

 

Dr. Alan MacDonald’s Work

Pathologist Dr. Alan MacDonald explored another possible layer of this infection model.

Not only spirochetes — but other parasites as well.

In a series of MS cases, MacDonald examined central nervous system and spinal fluid samples and reported finding tiny nematode worms in every MS patient studied.

These were filarial-type worms.

Using fluorescent in situ hybridization (FISH) with Borrelia-specific DNA probes, he discovered something striking.

Inside these worms were Borrelia burgdorferi spirochetes.

In other words, the worms appeared to be carrying Lyme bacteria inside them.

MacDonald proposed that these parasites could function like Trojan horses, transporting Borrelia into the brain and spinal cord.

He also documented Borrelia spirochetes embedded directly inside the myelin sheath of nerve cells of Alzheimer patients.

This raises another important possibility.

The immune system may attack myelin not because it is malfunctioning, but because infection is hiding in or around the myelin itself.

 

Modern Spinal Fluid Research

More recent studies continue to show how closely Lyme infection of the nervous system can resemble MS.

One important marker measured in spinal fluid is CXCL13, a chemokine that attracts B-cells involved in antibody production.

High CXCL13 levels in cerebrospinal fluid are considered one of the most sensitive indicators of Lyme neuroborreliosis, with sensitivity in the high-80 percent range and specificity in the mid-90 percent range.

Researchers have also found elevated CXCL13 levels in some patients diagnosed with MS, especially when Borrelia antibodies are present in spinal fluid.

Another important discovery involves persistent Borrelia infection.

A 2021 autopsy study detected Borrelia DNA and spirochete-like structures in multiple regions of the brain and spinal cord of a patient with long-standing neurological symptoms.

A 2023 study similarly detected Borrelia garinii and Borrelia burgdorferi DNA in distinct regions of a human brain after death, even after prior antibiotic treatment.

These findings demonstrate that Lyme bacteria can persist in brain tissue, including areas where MS lesions typically occur.

 

The “Weedy Garden” Model

When we look at all of this research together, a different model of MS begins to emerge.

Rather than a single autoimmune disease, MS may represent a polymicrobial infection of the nervous system.

Not one pathogen.

But many.

This is what I often describe as the “weedy garden.”

In an overgrown garden, there is rarely just one weed.

There are many.

In MS and other chronic illness we observe the following pattern:

• Large parasites such as roundworms, tapeworms, and flukes
• Tiny filarial worms that may carry microbes
• Bacteria such as Borrelia
• Protozoa like Babesia
• Fungal organisms such as Candida and molds
• Severe dysbiosis in the gut microbiome.

When this microbial ecosystem becomes severely imbalanced, the immune system struggles to control it, producing chronic inflammation and neurological damage.

 

What This Means for Patients

If you have been diagnosed with MS or another chronic disease, this history matters.

It helps explain why:

• MRI lesions can resemble Lyme infection of the nervous system
• Spinal fluid markers like oligoclonal bands appear in both conditions
• Patients improve when underlying infections and parasites are addressed.

The common statement that “MS and Lyme are different because antibiotics do not help MS” overlooks several important findings:

• The minocycline trial showing reduced progression to MS
• More than a century of research documenting spirochetes in the nervous system
• Evidence that Borrelia can persist in brain tissue.

 

A Century of Research That Cannot Be Ignored

When the full scientific record is examined, a clear pattern emerges.

For more than 100 years, scientists have repeatedly documented spirochetes and parasites in the nervous system of people with MS-like disease.

From neurosyphilis…

to early MS spirochete research…

to modern Lyme neuroborreliosis studies…

The infectious model has never disappeared.

It has simply been overshadowed.

If chronic infections causes diseases like MS, the path forward may require a different approach:

Not suppressing the immune system.

But investigating and addressing the underlying infections that are driving disease.

 

There are real solutions to recover from parasites today!

To restore health, we must focus on treating the cause of inflammation, which are parasites. First, identify the enemy (parasites), then support the body and treat the parasites while following a holistic approach. When parasitic infections are treated effectively, we can overcome inflammation or disease.

If you’re frustrated with the fact that our standard of care STILL doesn’t offer a real solution for treating MS and other diseases, then click on the link below to watch Pam Bartha’s free masterclass training and discover REAL solutions that have allowed Pam and many others to live free from MS and other diseases.

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References

Neurosyphilis proves a chronic spirochete can cause MS‑like CNS disease

1. Ha T, Shalaby M, Kenyon C. Neurosyphilis. In: StatPearls. Treasure Island, FL: StatPearls Publishing; 2024.
   Brief: Clinical and pathologic review of neurosyphilis, including general paresis with demyelination, white‑matter damage, and progressive neurological decline caused by Treponema pallidum invading the CNS.
   URL: https://www.ncbi.nlm.nih.gov/books/NBK540979/​
2. Medveczky J, et al. Neurosyphilis: insights into its pathogenesis, susceptibility, and therapeutics. Front Neurol. 2024;14:1340321.
   Brief: Modern overview of neurosyphilis pathogenesis; describes chronic meningoencephalitis, perivascular inflammation, demyelinating plaques, and cognitive/psychiatric manifestations, highlighting that a chronic spirochete infection can mimic immune‑mediated demyelinating disease.
   URL: https://www.frontiersin.org/articles/10.3389/fneur.2023.1340321/full​

Pre‑1954 spirochete work in MS (historical MS–spirochete studies)

1. Steiner G. Acute plaques in multiple sclerosis, their pathogenetic significance and the role of spirochetes as etiological factor. J Neuropathol Exp Neurol. 1952;11(4):343‑372.
   Brief: Classic neuropathological study describing acute MS plaques with silver‑stained spirochete‑like forms; proposes a spirochetal etiology for MS lesions.
   URL: https://academic.oup.com/jnen/article-abstract/11/4/343/1877642​
2. Steiner G. Morphology of Spirochaeta myelophthora in multiple sclerosis. J Neuropathol Exp Neurol. 1954;13(4):461‑472.
   Brief: Further characterizes a “myelin‑loving” spirochete (Spirochaeta myelophthora) in MS tissue based on morphology and silver stains, reinforcing the infectious hypothesis.
   URL: https://pubmed.ncbi.nlm.nih.gov/13118387/
3. Newman HW, Purdy C, Rantz LA, Hill FC Jr. The spirochete and multiple sclerosis. Calif Med. 1958;89(6):387‑390.
   Brief: NIH‑hosted article reviewing earlier MS‑spirochete work (including Ichelson and numerous pre‑WWII reports) and repeating CSF culture work; directly acknowledges decades of infectious MS research.
   URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC1512544/​
4. Peron S, et al. The probable infectious origin of multiple sclerosis. J Neuroimmunol. 2023;376:577048.
   Brief: Modern review summarizing historical data that more than 50 papers before 1954 reported spirochetes or MS‑associated infectious agents in MS tissue and animal models; useful as an umbrella citation for the pre‑WWII literature.
   URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC11523707/​

Ichelson cultures and Time magazine coverage

1. Ichelson R. Cultivation of spirochetes from spinal fluids of multiple sclerosis cases with negative controls. Proc Soc Exp Biol Med. 1957;95(1):57‑58.
   Brief: Reports successful culture of spirochetes from 59 of 76 MS CSF samples (~78%) and none from controls; concludes MS appears to be caused by a spirochete and suggests early antimicrobial treatment.
   URL: https://pubmed.ncbi.nlm.nih.gov/13431986/​
2. Newman HW, Purdy C, Rantz LA, Hill FC Jr. The spirochete and multiple sclerosis. Calif Med. 1958;89(6):387‑390.
   Brief: Attempts to replicate Ichelson; detects apparent microorganisms in 18.5% of MS CSF samples and 0% of controls, and explicitly states that the work supports Ichelson’s findings but requires confirmation.
   URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC1512544/​
3. Anonymous. The Mystery of Multiple Sclerosis. Time. 1957 Jun 24.
   Brief: News piece reporting Ichelson’s claim that she cultured Spirochaeta myelophthora from MS spinal fluid and inferred a spirochetal cause; reflects contemporary recognition of the infectious hypothesis.
   URL: http://content.time.com/time/magazine/article/0,9171,825059,00.html

Oral spirochete / Marshall spirochetal MS hypothesis

1. Gay D, Dick G. Is multiple sclerosis caused by an oral spirochaete? Lancet. 1986;2(8498):75‑77.
   Brief: Proposes that oral/sinus spirochetes might invade the CNS and contribute to MS, drawing analogies to neurosyphilis and presenting epidemiologic and microbiologic arguments.
   URL: https://pubmed.ncbi.nlm.nih.gov/2873382/​
2. Marshall V. Multiple sclerosis is a chronic central nervous system infection by a spirochetal agent. Med Hypotheses. 1988;25(2):89‑92.
   Brief: Argues MS is a chronic CNS spirochetal infection similar to Lyme and neurosyphilis, citing pre‑1954 silver‑stain and animal transmission studies and emphasizing that immune activation does not exclude infection.
   URL: https://www.sciencedirect.com/science/article/pii/0306987788900230​

MS–Lyme serology and clinical overlap

1. Coyle PK, Krupp LB, Doscher C, et al. Borrelia burgdorferi antibodies in patients with relapsing–remitting form and chronic progressive form of multiple sclerosis. J Neurol Neurosurg Psychiatry. 1988;51(9):1215‑1218.
   Brief: Compares Borrelia antibodies in MS vs matched controls; finds substantial seroprevalence in both groups, illustrating exposure and fueling debate about simple serologic “MS = Lyme” claims.
   URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1033030/
2. Chmielewska‑Badora J, Zwoliński J, Cisak E, et al. Lyme borreliosis and multiple sclerosis: any connection? A seroepidemic study. Ann Agric Environ Med. 2000;7(2):141‑143.
   Brief: Among 769 neurology patients, MS diagnosis was significantly associated with positive anti‑Borrelia serology (38.5% of MS vs 19.4% overall), suggesting frequent co‑association of Borrelia infection with MS.
   URL: https://pubmed.ncbi.nlm.nih.gov/11153045/​
3. Murakami F, et al. Controversies in late neuroborreliosis and multiple sclerosis: case series. Ther Pharmacol Clin Toxicol. 2009;13(1):47‑52.
   Brief: Romanian case series highlighting that MRI and clinical features of late neuroborreliosis can fulfil MS criteria; recommends routine Borrelia evaluation in suspected MS.
   PDF: http://owndoc.com/pdf/romanian-study-ms-is-lyme.pdf
4. Kozlova A, et al. Lyme disease in patients with multiple sclerosis: clinical, diagnostic and therapeutic features. Zh Nevrol Psikhiatr Im S S Korsakova. 2012;112(2 Pt 2):64‑68.
   Brief: Russian cohort showing Lyme disease can trigger or worsen MS‑like presentations, complicating diagnosis and management.
   URL: https://pubmed.ncbi.nlm.nih.gov/22677681/

Modern CSF evidence: oligoclonal bands and CXCL13 in Lyme neuroborreliosis

1. Berek K, Hegen H, Achrainer N, et al. Cerebrospinal fluid oligoclonal bands in neuroborreliosis are highly specific for Borrelia burgdorferi. PLoS One. 2020;15(9):e0239453.
   Brief: In definite neuroborreliosis, ~90% of patients had Borrelia‑specific OCBs in CSF (sensitivity 90%, specificity 100%), showing that a classic “MS‑type” OCB pattern can be specifically directed against Borrelia.
   URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC7518929/​
2. Rupprecht TA, Lechner C, Tumani H, Fingerle V. Sensitivity and specificity of cerebrospinal fluid CXCL13 as a diagnostic biomarker for Lyme neuroborreliosis. J Neurol. 2020;267(7):2022‑2030.
   Brief: Reports CSF CXCL13 with sensitivity and specificity both around the mid‑90% range for Lyme neuroborreliosis, supporting your statement that CXCL13 is one of the most sensitive LNB markers.
   URL: https://pubmed.ncbi.nlm.nih.gov/32344220/​
3. Schmidt C, Plate A, Angele B, Pfister HW, Rupprecht TA. CXCL13 may improve diagnosis in early neuroborreliosis with negative Borrelia burgdorferi‑specific antibody index. BMC Neurol. 2012;12:125.
   Brief: Case‑based study showing very high CSF CXCL13 in early LNB even when Borrelia antibody index is still negative, demonstrating CXCL13’s added value and high sensitivity.
   URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC3528660/​
4. Marques AR. Laboratory diagnosis of Lyme neuroborreliosis. J Neuroimmunol. 2020;339:577122.
   Brief: Review of CSF findings in LNB, including frequency of lymphocytic pleocytosis, OCBs, and intrathecal Borrelia antibodies; useful for your “up to ~90% have OCBs, often Borrelia‑specific” language.
   (Use as general CSF‑pattern reference.)

Autopsy and persistence: Borrelia DNA in brain

1. Middelveen MJ, Burke J, Sapi E, et al. Concurrent infection of the human brain with multiple Borrelia species. Pathogens. 2023;12(11):1429.
   Brief: Autopsy of a patient with chronic Lyme disease showing DNA from B. burgdorferi sensu stricto and B. garinii in distinct brain regions, confirming multi‑species Borrelia persistence in human brain tissue.
   URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC10707132/​
2. Cameron DJ. Autopsy reveals multiple Borrelia species in brain of man with chronic Lyme disease.
   Brief: Clinician summary of Middelveen et al., providing a lay‑friendly explanation that multiple Borrelia species persisted in different brain areas despite treatment.
   URL: https://danielcameronmd.com/autopsy-borrelia-brain-lyme-disease/​
3. Miklossy J, Kasas S, Zurn AD, McCall S, Yu S, McGeer PL. Persisting atypical and cystic forms of Borrelia burgdorferi and local inflammation in Lyme neuroborreliosis. J Neuroinflammation. 2008;5:40.
   Brief: Demonstrates atypical/cystic Borrelia forms in human brain tissue with chronic neuroborreliosis, supporting long‑term persistence in CNS.
   URL: https://jneuroinflammation.biomedcentral.com/articles/10.1186/1742-2094-5-40​

Minocycline trial in clinically isolated syndrome (NEJM + follow‑up)

1. Metz LM, Li DKB, Traboulsee A, et al. Trial of minocycline in a clinically isolated syndrome of multiple sclerosis. N Engl J Med. 2017;376(22):2122‑2133.
   Brief: Randomized, double‑blind trial in patients with first demyelinating event; minocycline 100 mg twice daily reduced 6‑month conversion to MS versus placebo and improved MRI outcomes; funded by the MS Society of Canada.
   URL: https://pubmed.ncbi.nlm.nih.gov/28564557/​
2. Cámara‑Lemarroy CR, Metz LM, Kuhle J, et al. Minocycline treatment in clinically isolated syndrome and serum NfL, GFAP, and metalloproteinase levels. Mult Scler. 2023;29(2):203‑214.
   Brief: Biomarker analysis from the MinoCIS trial showing minocycline reduced conversion risk and modulated neurofilament light, GFAP, and MMPs, supporting its biological impact in early MS.
   URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC9574233/​

Dr Alan MacDonald’s Findings:

1. Nematodes and Borrelia in MS CSF (poster)

1. MacDonald AB. Nematode filarial worms in cerebrospinal fluid of a multiple sclerosis patient at autopsy. F1000Research. 2016. Poster.
   Brief: Autopsy CSF from an MS patient showed multiple filarial‑type nematodes; FISH with Borrelia‑specific DNA probes demonstrated Borrelia DNA within the worms, suggesting nematodes as carriers of Lyme spirochetes into the CNS.
   URL: https://f1000research.com/posters/5-79​
2. MacDonald AB. Nematode filarial worms in cerebrospinal fluid of a multiple sclerosis patient at autopsy. Dr Paul H. Duray Research Fellowship Endowment; technical report.
   Brief: Expanded PDF version of the above poster, with micrographs and methods, documenting nematode larvae in MS CSF and intraworm Borrelia DNA by FISH.
   PDF: http://www.lymenet.de/literatur/macdonald-nematode_filarial_worms_in_csf_of_an_MS_patient.pdf​
3. MacDonald AB. Multiple sclerosis autopsy cerebrospinal lateral ventricles: novel brain compartment tapeworm larvae—possible role in MS pathogenesis. F1000Research. 2020. Poster.
   Brief: Poster describing small cestode (tapeworm) larvae in MS brain compartments, extending the parasitosis model of MS.
   URL: https://f1000research.com/posters/9-1062​

2. Spirochetes in myelin / plaques (Alzheimer work that supports your infection‑in‑myelin argument)

1. MacDonald AB. Plaques of Alzheimer’s disease originate from cysts of Borrelia burgdorferi, the Lyme disease spirochete. Med Hypotheses. 2006;67(3):592‑600.
   Brief: Describes Borrelia forms within amyloid plaques and suggests that spirochetal cysts may seed plaque formation; supports the concept of spirochetes embedded in CNS tissue (including myelin).
   (Accessible via summary:) https://pubmed.ncbi.nlm.nih.gov/16675154/​
2. Miklossy J, McGeer PL, MacDonald AB, et al. Alzheimer’s disease—a neurospirochetosis. Analysis of the evidence following Koch’s and Hill’s criteria. J Neuroinflammation. 2011;8:90.
   Brief: Multi‑author review including MacDonald’s work; documents spirochetes in Alzheimer brains and shows chronic neurospirochetosis can cause plaques, dementia, and atrophy, paralleling neurosyphilis.
   URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC3171359/​
3. Livediseasefree (summary of MacDonald 2006). Lyme spirochetes in the myelin sheath of brain nerve cells. 2022.
   Brief: Lay summary of MacDonald’s 2006 finding of Borrelia spirochetes embedded in myelin sheaths, used to explain immune‑mediated myelin injury in MS‑like disease.
   URL: https://livediseasefree.com/lyme-spirochetes-in-myelin-of-brain-nerve-cells/​

3. Lecture / video as citable educational material

1. MacDonald AB. Multiple sclerosis is a parasitosis. YouTube. 2018.
   Brief: Conference‑style lecture arguing that MS is a “neural larval migrans” with filarial worms and Borrelia as co‑pathogens; he presents 10/10 MS CSF specimens positive for nematodes and many with intraworm Borrelia by FISH.
   URL: https://www.youtube.com/watch?v=EHVXJpDBcmU​

Livediseasefree. MS is an infectious disease Part 3: Filarial worms in MS. 2025.
Brief: Summarizes MacDonald’s CSF work in plain language, emphasizing that 10/10 MS CSF samples studied contained filarial worms carrying Borrelia DNA.
URL: https://livediseasefree.com/ms-is-an-infectious-disease-part-3-filarial-worms-in-ms/

 

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