Why Did Two Morgellons Studies Point Toward Helicobacter?

In 2019, researchers reported Helicobacter pylori-associated findings in most of the Morgellons dermatological specimens they examined and described the organism alongside Borrelia burgdorferi in mixed biofilm-like aggregates. Seven years later, an untargeted metagenomic study reported broad Proteobacteria-associated patterns in Morgellons lesion material. Because H. pylori was historically classified among the Epsilonproteobacteria, the newer result appeared to point back toward the same broad bacterial territory. If that resemblance represented genuine independent convergence, it could have been one of the most intriguing developments in Morgellons research. I went looking for how far the evidence actually reached.

The resemblance initially seemed almost too neat. The 2019 investigators had gone looking specifically for H. pylori. They selected primers, fluorescent probes and antibodies intended to detect it in Morgellons dermatological material. The authors of the 2026 metagenomic preprint did nothing comparable. They sequenced nonhuman genetic material recovered from lesion specimens and reconstructed whatever microbial genomes the samples happened to contain.

The newer study’s broader taxonomic results included Proteobacteria-associated signatures. That mattered because H. pylori was long described as an epsilon-proteobacterium. The terminology created what looked like an evolutionary bridge between the studies: one team had targeted a particular organism historically placed within Proteobacteria, while another had approached the lesions without targeting that organism and reported signals within the much larger group to which it had once belonged.

That was the reason for investigating the apparent overlap. It was not an invented association, but neither was it yet evidence that the newer study had found Helicobacter. Proteobacteria is an extraordinarily broad bacterial grouping containing organisms with radically different habitats, biological properties and relationships to human disease. A phylum-level signal cannot ordinarily be converted into a genus-level identification.

The taxonomy itself has also changed. Organisms once grouped as Epsilonproteobacteria were separated from the traditional Proteobacteria framework and are now placed within the phylum Campylobacterota. Under modern classification, H. pylori belongs to Campylobacterota, class Epsilonproteobacteria, order Campylobacterales, family Helicobacteraceae and genus Helicobacter.

The central question was therefore more precise than whether both papers mentioned bacterial groups that could loosely be associated through older terminology. Did the 2026 study contain a lesion-derived genome, read set or other taxonomic result assigned specifically to Helicobacter, Helicobacteraceae, Campylobacterales or Campylobacterota? Or did the apparent convergence exist only at the broad and historically complicated level of Proteobacteria?

The Ulcer Bug Does Not Normally Live in Skin

To understand why a genuine overlap would have been surprising, it helps to know what Helicobacter pylori normally is. It is a stomach-associated bacterium commonly known as the ulcer bug. It survives in the gastric environment, an ecological niche so hostile that the stomach was once widely assumed to be sterile. Its ability to persist there is one of its defining biological characteristics.

The physician who helped establish its role in gastritis and peptic ulcer disease, Barry Marshall, spent years facing skepticism. In 1984, he drank a culture containing the organism and developed gastritis. Marshall and pathologist Robin Warren later received the 2005 Nobel Prize in Physiology or Medicine for their work establishing the importance of H. pylori in gastric disease.

That history is often invoked as a parable about stubborn institutions and vindicated outsiders. It is more useful as a lesson in how controversial claims become credible. Marshall and Warren did not prevail merely by insisting that conventional medicine was wrong. They isolated the organism, connected it to disease, reproduced key observations and created evidence that other investigators could inspect and test.

How H. pylori Overturned the Ulcer Consensus

Barry Marshall’s story is relevant here not because every controversial microbial hypothesis will eventually be vindicated, but because it demonstrates what scientific vindication requires. A proposed organism must be identified reliably, localized appropriately, connected to the disease process and supported by evidence that independent investigators can examine and reproduce.

https://www.youtube.com/watch?v=V_U6czbDHLE

Skin is not the organism’s expected habitat. Finding convincingly identified H. pylori in a skin lesion would be substantially more surprising than detecting an ordinary skin or wound-associated bacterium. That biological incongruity is what made the 2019 report worth examining, and it is why a truly independent metagenomic result involving the same genus or close lineage would have mattered.

A targeted study and an untargeted study, separated by seven years and using fundamentally different methods, could provide meaningful independent agreement if they converged at an informative taxonomic level. A shared signal at the level of a genus, family or perhaps a narrowly defined order could justify further investigation. A resemblance at the level of an enormous phylum cannot carry the same evidentiary weight.

What the 2019 Study Reported

The 2019 paper examined dermatological material from 14 North American participants whose lesions reportedly contained red, white, blue or black filaments embedded in or projecting from the skin. Much of the collected material consisted of thickened callus or tissue removed from affected areas.

Using nested polymerase chain reaction assays, the investigators reported Borrelia-associated targets in 10 of the 14 specimens and Helicobacter-associated targets in 12. Eight specimens produced at least one target attributed to each proposed organism, while none was reported as negative for both. The authors summarized their findings as the detection of B. burgdorferi and H. pylori in Morgellons dermatological specimens.

Six specimens that tested positive for both proposed organisms underwent additional analysis using fluorescent in situ hybridization, immunohistochemical staining, histochemical markers and confocal microscopy. The researchers described overlapping microbial signals inside aggregate formations. They reported Helicobacter-associated reactivity nearer the exterior of some aggregates and Borrelia-associated reactivity concentrated more centrally. They also detected alginate-associated staining and several amyloid-related markers, interpreting the combined observations as evidence consistent with mixed bacterial biofilms.

This was more ambitious than reporting that two bacterial DNA fragments had been amplified from the same lesion. The authors proposed an organized physical structure in which two organisms occupied different regions of an aggregate surrounded by material interpreted as a protective biofilm matrix.

If accurate and reproducible, such a finding could be biologically important. It would not automatically prove that the proposed biofilm initiated Morgellons disease, but it could identify a feature associated with lesion persistence, inflammation or reduced antimicrobial susceptibility. For several years, however, the finding remained largely isolated. No independent untargeted study had examined Morgellons lesion material and reported the same organisms.

Then Researchers Looked Without Targeting a Specific Organism

Lambert and Kindschuh approached Morgellons lesions very differently. Their study used deep shotgun metagenomic sequencing on specimens from five related people living in one household. Each participant provided a swab from postauricular skin and a separate sample consisting of pooled fibrous lesion material.

The methodological distinction is important. A targeted PCR assay is designed to detect selected genetic regions from organisms the investigators already suspect. Shotgun metagenomics sequences recoverable DNA more broadly and attempts to identify the resulting material afterward. It is closer to photographing the contents of a room than searching the room for one predetermined object.

After removing reads that mapped to the human genome, the researchers compared the remaining sequence content of the two specimen types. The lesion samples reportedly contained a greater proportion of nonhuman reads, produced larger and more variable assemblies and contained substantially more sequence that could not be classified confidently using standard microbial databases.

An average of 61.4 percent of nonhuman lesion reads remained unclassified, compared with 34 percent of postauricular reads. Among the reads that were classified, lesion-derived sequences were less likely to receive species-level assignments and had lower average classification support. The lesion material therefore contained a large amount of genetic sequence that was poorly represented in the available reference databases.

The investigators also reported broad differences in the taxonomic composition of classified sequence, including Proteobacteria-associated patterns. This was the observation that initially suggested a possible relationship to the 2019 H. pylori report. In older literature, Helicobacter is routinely described as belonging to the Epsilonproteobacteria, historically treated as a class or subdivision of Proteobacteria.

That historical relationship is real, but it is far too broad to identify the organism. Saying that a sample contains Proteobacteria-associated sequence is comparable to saying that an animal belongs somewhere among the mammals. It does not tell us whether the animal is a mouse, a whale or a human. Likewise, a Proteobacteria-level signal does not establish Helicobacter, Helicobacteraceae or even the narrower branch once called Epsilonproteobacteria.

The terminology can make the connection seem closer than it is. Modern taxonomic systems generally place the former epsilon-proteobacterial lineage in a separate phylum, Campylobacterota. That group contains Helicobacter, Campylobacter, Wolinella, Arcobacter and other related genera. A modern Campylobacterota assignment would therefore have been considerably more relevant to the 2019 results than an undifferentiated Proteobacteria signal.

The investigators assembled 429 metagenome-assembled genome bins, commonly called MAGs. A MAG is a computational reconstruction created by grouping sequence fragments believed to originate from the same microbial population. It is not necessarily a complete genome, a cultured organism or proof that the organism represented by the sequence was alive within the tissue.

Of the 429 bins, 345 came from lesion material and 84 from postauricular samples. After filtering and dereplication, the investigators used representative genomes to examine abundance patterns and construct a phylogenetic tree. They reported branches composed entirely of lesion-derived genomes, including one branch assembled only from lesions provided by the two participants who reported more substantial systemic symptoms.

The paper’s own conclusion was deliberately limited. It described a phylogenetically structured microbial signature that differed between pooled lesion material and postauricular skin, with much of the lesion sequence poorly represented in existing databases. The authors did not claim to have identified a causal pathogen. They called for larger cohorts and complementary laboratory methods. The work remains a bioRxiv preprint and has not completed formal peer review.

The combination of a Proteobacteria-associated signal, the historical epsilon-proteobacterial classification of Helicobacter and the appearance of the phylogenetic figure invited a more specific interpretation. In patient-community discussion, including my own initial reading, the data seemed to point toward the broader bacterial territory containing Helicobacter. The question was whether that impression corresponded to a formal taxonomic assignment in the study’s underlying analysis.

I Went Looking for the Classification

An impression from a phylogenetic figure or a broad phylum-level pattern is not itself a genus-level taxonomic result. If a lesion-derived genome had been formally assigned to Helicobacter or one of its close modern lineages, there should have been an identifiable object behind the claim: a genome-bin identifier, a taxonomic pathway, a sample of origin, an abundance estimate, completeness and contamination measurements, and a defined position within the phylogenetic analysis.

I am not a microbiologist, and this article does not attempt to produce a new scientific analysis. It undertakes a narrower task: determining whether a striking interpretation can be traced to the study and output that supposedly support it. That requires distinguishing a broad resemblance from a specific classification and separating what the authors reported from what readers later inferred.

I reviewed the bioRxiv manuscript, its figures, captions and publicly described data disclosures. I found no author-reported Helicobacter result, no named Helicobacter MAG and no public bin accession through which such an assignment could be inspected. The genus does not appear in the written results or conclusions.

That absence did not by itself resolve the issue. Published figures and manuscript text summarize a much larger analytical output. A taxonomic label might theoretically exist in an underlying table or in sequence-level output that the authors had no reason to emphasize. I therefore wrote to the corresponding author, Dr. William Kindschuh, and asked whether any lesion-derived MAG, classified read set or other sequence output had been assigned to Helicobacter, Helicobacteraceae or a closely related Campylobacterota lineage.

Dr. Kindschuh responded and clarified both what the study had analyzed and what it had not.

He explained that the preprint did not conduct an extensive comparative taxonomic analysis between the lesion and postauricular samples. The principal exceptions were the MAG classifications presented in Figures 5c and 6, generated using GTDB-Tk. Among those MAG classifications, he confirmed, none was assigned to Helicobacter, Helicobacteraceae or Campylobacterota.

This clarification does not erase the Proteobacteria-associated result that prompted the inquiry. Instead, it defines its limits. The study reported broad taxonomic patterns that could evoke the older classification of Helicobacter, but its formally classified reconstructed genomes did not resolve that signal into the modern lineage containing the genus.

That answer is also narrower than declaring that no Helicobacter-related sequence could exist anywhere within the underlying raw data. The investigators ran Kraken2, which assigns taxonomic labels to sequence reads, and reported aspects of that analysis in Figure 2. However, the preprint did not conduct or present an extensive comparison of the Kraken2 taxonomies, and it did not report a read- or contig-level Helicobacter result.

There are therefore two different statements, and they should not be confused. The first is supported: the study reported broad Proteobacteria-associated signatures, a finding that reasonably suggested comparison with an organism historically called an epsilon-proteobacterium. The second is not supported: the study did not report a MAG assigned to Helicobacter, Helicobacteraceae or Campylobacterota, and it did not establish a lower-level Helicobacter result elsewhere in the published analysis.

Dr. Kindschuh also clarified the purpose of the study. Its primary aim was not to identify a specific pathogen, but to demonstrate that the lesion and comparison samples contained a measurable and phylogenetically structured difference worthy of further investigation. The preprint reports evidence of a microbial signal. It does not establish what particular organism or biological process produced that signal.

That response changed the article without making the original question unreasonable. The Proteobacteria finding supplied a legitimate reason to ask whether the more specific epsilon-proteobacterial or Campylobacterota lineage appeared in the data. The answer, at the level of the reported MAG classifications, was no.

Lambert and Kindschuh did not claim to have found Helicobacter. The responsibility belongs to those of us—including me—who considered whether the broad taxonomic signal and phylogenetic presentation might support that interpretation. Asking the question was justified. Repeating the proposed answer without tracing it to the underlying classification would not have been.

The apparent convergence therefore survives only in a limited sense. The two studies touched bacterial territory that can be connected through older, high-level taxonomy. They did not independently identify the same genus, family or modern phylum.

Why Taxonomic Rank Changes the Meaning

Taxonomy is hierarchical. A sequence can be classified broadly while remaining unidentifiable at narrower levels. Domain, phylum, class, order, family, genus and species are not interchangeable conclusions. Each step downward requires enough discriminating sequence information and enough confidence to separate one lineage from its relatives.

A Proteobacteria-associated signal therefore says far less than a Campylobacterota assignment, and a Campylobacterota assignment says far less than a formal identification of Helicobacteraceae or Helicobacter. The historical placement of H. pylori within Epsilonproteobacteria explains why the newer result attracted attention, but it cannot provide the missing specificity.

This is particularly important because the traditional Proteobacteria grouping encompasses an enormous range of bacteria. It includes common environmental organisms, normal human-associated microbes, opportunistic pathogens and major causes of infectious disease. Finding some members of that broad grouping in lesion material is not unexpected enough to constitute confirmation of one unusual gastric organism.

The use of two different taxonomic systems can add to the confusion. A reader familiar with older literature may see “Proteobacteria” and correctly remember that Helicobacter was once placed there. A modern genome classifier may place the same lineage under Campylobacterota. Both observations reflect taxonomic history, but neither permits a broad Proteobacteria result to be retroactively narrowed to Helicobacter.

This is why Dr. Kindschuh’s answer matters. The relevant modern taxonomic categories were not merely absent from the prose. None of the reported GTDB-Tk MAG classifications was assigned to Helicobacter, Helicobacteraceae or Campylobacterota.

The 2019 H. pylori Finding Was Not Uniform Either

The newer study did not narrow its Proteobacteria-associated signal to Helicobacter. The older study deserves comparable scrutiny because its sequence table presents a more complicated picture than the frequently repeated summary that H. pylori was found in 12 of 14 Morgellons specimens.

Several PCR products produced closest database matches to H. pylori. Others matched Helicobacter canis. Participant 3 had 16S products whose closest match was Wolinella succinogenes, while participant 14 had 23S products matching Arcobacter butzleri. These organisms occupy related territory within Campylobacterales and Campylobacterota, but they are not all H. pylori.

The inconsistency sometimes appeared within the same participant. A specimen could produce one target most similar to H. canis while other targets were interpreted as H. pylori.

The most striking example appears in participant 14. Two 23S amplicons matched Arcobacter butzleri with 99 percent identity and more than 95 percent query coverage. The forward ureA amplicon showed 91 percent identity to H. pylori across 76 percent of the query sequence. The reverse ureA amplicon was substantially weaker, showing 76 percent identity across 48 percent of the query.

That reverse alignment provides weak support for a confident species-level identification. A sequence can return H. pylori as its closest available database match while remaining too incomplete or dissimilar to establish that it originated from that species.

Short targeted amplicons may also contain genetic regions conserved among related bacteria. Under those circumstances, PCR can genuinely recover microbial DNA from the intended evolutionary neighborhood without supplying enough discriminatory information to identify one species reliably.

This does not establish that every 2019 result was false. Several products had high identity and substantial coverage with H. pylori. It does mean that the headline compresses heterogeneous sequence evidence into a level of taxonomic certainty that the table does not consistently support.

A more defensible summary is that the investigators recovered targeted sequences interpreted as H. pylori-associated, while several of the closest matches pointed toward other Helicobacter species or related Campylobacterota. That remains an interesting observation. It is not equivalent to repeatedly confirming one gastric pathogen in skin.

Did the Researchers Demonstrate a Mixed Biofilm?

The taxonomic ambiguity does not automatically dispose of the 2019 paper’s spatial evidence. The investigators also attempted to visualize bacterial targets inside tissue aggregates using FISH, immunostaining and confocal microscopy.

This matters because PCR alone cannot establish a biofilm. Two organisms may be detected in the same homogenized specimen without ever occupying the same microscopic location. A mixed biofilm requires evidence that distinguishable organisms exist in close proximity within an organized structure, ideally accompanied by a matrix and evidence that the microbial community is biologically active.

How Pathogenic Biofilms Contribute to Persistent Infection

Biofilms can become clinically important when microorganisms form organized, surface-associated communities that tolerate antimicrobial exposure and resist clearance by the host. This presentation explains how pathogenic biofilms function in chronic infections and why demonstrating a true biofilm requires more than detecting several organisms in the same specimen.

https://www.youtube.com/watch?v=JNrgewhtzhM

The 2019 researchers deserve credit for attempting to address the spatial question rather than relying entirely on bulk molecular detection. Their FISH protocol included several reported controls, including a random oligonucleotide, an unlabeled competing oligonucleotide and DNase treatment of tissue sections.

Important uncertainties nevertheless remain. The extended imaging and staining were performed on six selected specimens that had already tested positive for both proposed organisms. The study did not apply the same complete protocol to a substantial group of non-Morgellons chronic wounds, infected calluses, excoriated dermatitis, prurigo nodules or other damaged lesions likely to contain mixed microbes and inflammatory aggregates.

Those controls are especially important because biofilms are common in chronic wounds. A chronic, repeatedly disturbed lesion is already an environment in which organized microbial communities may develop, prolong inflammation and reduce susceptibility to antimicrobial treatment. The presence of a biofilm-like structure would not, by itself, distinguish Morgellons from other persistent or manipulated skin lesions.

Normal skin is useful as a negative control, but it does not address the most important competing explanation. To establish Morgellons specificity, the reported structures would need to differ meaningfully from what occurs in ordinary chronic, colonized, inflamed or repeatedly excoriated skin.

The matrix-associated markers also require careful interpretation. Alginate staining may support a biofilm hypothesis, but it does not identify which organism produced the material or establish metabolic activity. Thioflavin can bind amyloid-like structures without determining whether they are bacterial or host-derived. One beta-amyloid antibody was negative across the six specimens while another produced positive staining. Phosphorylated-tau reactivity in cutaneous aggregates is sufficiently unusual that cross-reactivity and nonspecific binding would need rigorous validation against comparable inflammatory tissue.

A 2020 review of mixed-species biofilms discussed the Morgellons paper directly. Its authors noted that bacterial morphology could not be seen adequately in the published images, making the structural composition of the proposed aggregates difficult to evaluate. Their broader point was that detecting multiple species through molecular methods is not equivalent to visually demonstrating how those species are organized within the same biofilm.

The 2019 paper therefore produced provocative, multi-method evidence. It did not establish beyond dispute that the aggregates represented viable, Morgellons-specific, mixed Borrelia–Helicobacter biofilms.

The Missing Borrelia Partner

Even if future analysis of the 2026 dataset were to identify a Helicobacter-related sequence or organism, it would still not reproduce the central model proposed in 2019.

The earlier paper did not describe an isolated association with Helicobacter. It proposed a partnership between B. burgdorferi and H. pylori, with both organisms reportedly occupying mixed aggregates. Borrelia was not a minor addition. It was the principal organism around which much of the infectious Morgellons hypothesis had already been constructed.

The 2026 preprint discusses earlier Borrelia research as background but does not report a lesion-associated Borrelia MAG or identify Borrelia as part of its newly recovered microbial signature.

That does not establish that the raw reads contained no Borrelia-related material. Shotgun metagenomics can fail to reconstruct a low-abundance organism when sequence coverage is sparse or uneven. The narrower conclusion is that the newer study did not reproduce the proposed Borrelia–Helicobacter partnership among its reported findings.

One Household, Unmatched Specimens and Several Possible Explanations

Even the microbial signal that the 2026 study did report should be interpreted carefully because the study design allows several possible explanations. The five participants were related and lived in one household. This provided an opportunity to study a family cluster, but it did not provide five independent environmental exposures.

Cohabitants may share water, food, household dust, laundry, bedding, personal-care products, pets and direct microbial transfer. A microbial lineage found in several family members could reflect a shared disease process, but it could also reflect a common environment or transfer within the household.

The two specimen types differed in more than lesion status. Pooled fibrous lesion material was compared with intact postauricular skin collected by swabbing. The samples differed in anatomical location, collection method, physical composition, barrier integrity and likely microbial biomass.

A crusted or open lesion may contain serum, injured cells, dried exudate, skin-surface organisms and material transferred from hands, fingernails, clothing, dressings or topical products. A postauricular swab represents a different biological compartment. Finding different microbial profiles in those specimens does not by itself identify a Morgellons-specific microbiome.

The paper also does not report sequenced extraction blanks, unused collection-kit controls or negative-control libraries. Their absence does not demonstrate contamination, but it prevents unusual taxonomic findings from being compared directly with background DNA introduced through collection materials, reagents or laboratory processing.

Salter and colleagues demonstrated that bacterial DNA present in extraction kits and laboratory reagents can distort both 16S and shotgun metagenomic analyses, particularly in low-biomass samples. Their work established the importance of sequencing negative controls alongside biological specimens. It does not prove that any particular sequence in the Morgellons study was a reagent contaminant. It establishes a competing possibility that must be tested rather than assumed away.

The look-elsewhere problem adds a separate concern. The newer study generated hundreds of reconstructed genome bins, while previous Morgellons research and community discussion have proposed numerous candidate organisms. When hundreds of outputs are examined retrospectively against a long list of familiar microbial names, apparent correspondences become increasingly likely to occur by chance or through overinterpretation.

The meaningful question is not whether a familiar phylum or genus seems to appear somewhere in a complicated output. It is whether a candidate was formally classified at an informative rank, consistently enriched, biologically abundant and absent from appropriate controls.

Could Lesion Ecology Explain the Microbial Differences?

A chronic lesion is not simply normal skin with an opening in it. It is an altered ecological niche.

Barrier damage exposes serum proteins, injured cells and nutrients unavailable on intact skin. Inflammation changes local oxygen, pH and immune activity. Scratching, washing, covering and applying topical substances alter the environment further. Microorganisms uncommon on healthy skin may colonize damaged tissue without having initiated the lesion.

Finding a bacterium in the ashes does not prove that it started the fire.

Secondary organisms are not necessarily irrelevant. Colonization can prolong inflammation, interfere with healing and become clinically important after another process has created the lesion. A microbe may function as an initiator, contributor, opportunist, passenger or contaminant, and those roles cannot be distinguished by detection alone.

The 2019 study cannot confidently determine which of those roles applies to its proposed Helicobacter-related findings. The 2026 preprint does not resolve that question because its broad Proteobacteria-associated patterns were not narrowed to Helicobacter, Helicobacteraceae or Campylobacterota among the reported MAG classifications.

The 2019 study also lacked comparable chronic-lesion controls. The 2026 preprint compared pooled lesion material with intact skin from a different anatomical location and did not preserve the spatial relationship between microbial DNA and surrounding tissue.

The CDC-supported Kaiser Permanente investigation provides useful baseline context. It studied 115 people meeting a broad definition based on reported material emerging from the skin together with lesions or disturbing cutaneous sensations. No common infectious source was identified. Many biopsies were compatible with chronic excoriation or irritation, and much of the analyzed submitted material was cellulose consistent with cotton.

That study did not use the narrow, filament-based case definition favored by infectious-Morgellons researchers, so it cannot resolve every question about carefully documented tissue-associated filaments. It does demonstrate why lesion microorganisms must be compared with ordinary wounds and excoriated skin rather than only with healthy controls.

The Experiment That Could Settle the Question

A useful follow-up should begin with well-characterized lesions rather than a preferred organism. Researchers should recruit unrelated participants and photograph filaments in place before removal, preserving scale, magnification and anatomical context. Each lesion should be sampled alongside adjacent unaffected skin from the same body site and a distant site collected through a comparable method.

The study should also include relevant disease controls: chronic wounds, excoriated dermatitis, prurigo, infected calluses, folliculitis and other lesions capable of containing crusts, foreign material and mixed microbial communities. Normal skin alone cannot determine whether a finding is specific to Morgellons or merely associated with tissue damage.

Unused swabs, collection tubes, extraction blanks, library-preparation blanks and household environmental samples should be sequenced alongside the clinical specimens. Any candidate MAG should be disclosed with its full taxonomic pathway, completeness, estimated contamination, genome size, abundance and distribution across cases and controls.

The same lesion should then be divided among complementary methods. Untargeted metagenomics could characterize the wider microbial community. Longer targeted sequencing could distinguish H. pylori from other Helicobacter species or more distant Campylobacterota. FISH, histology and high-resolution microscopy could determine whether an organism lies on the lesion surface, inside tissue or within an organized aggregate. Culture, RNA analysis or another viability method could help distinguish living organisms from residual DNA.

Blinded interpretation and replication by an independent laboratory would be essential. Such a design could answer two separate questions: whether a Helicobacter-related organism is reproducibly enriched in carefully documented Morgellons lesions, and whether its location and activity suggest participation in the disease rather than colonization of the resulting wound.

What Began as Taxonomic Convergence Became a Source Audit

This article began with a legitimate taxonomic clue. A targeted 2019 study reported H. pylori-associated findings in Morgellons specimens. Seven years later, an untargeted metagenomic preprint reported broad Proteobacteria-associated patterns in lesion material. Because H. pylori was historically classified among the Epsilonproteobacteria, the newer result raised the possibility that two very different methods had reached related bacterial territory.

Closer examination did not make that starting point irrational. It made the limits of the comparison clearer.

The 2019 sequence results were more heterogeneous than the paper’s species-level headline suggests. Its table included closest matches to H. pylori, H. canis, Wolinella succinogenes and Arcobacter butzleri, with varying levels of identity and query coverage. The study may have recovered bacterial material from the broader Campylobacterota neighborhood, but it did not produce one uniform pattern of repeated, high-confidence H. pylori identification.

The 2026 preprint reported a broader microbial signal, including Proteobacteria-associated patterns. That supplied a reasonable reason to investigate a possible relationship because of the older epsilon-proteobacterial classification of Helicobacter. It did not, however, identify the modern lineage containing the genus. Dr. William Kindschuh confirmed that none of the MAGs included in the reported GTDB-Tk comparisons was assigned to Helicobacter, Helicobacteraceae or Campylobacterota.

The appropriate conclusion is not that the comparison was fabricated or that the underlying dataset has been exhaustively proven to contain no Helicobacter-related sequence. The study did not perform the extensive lower-level comparative taxonomy required to make that broader claim. The appropriate conclusion is that its Proteobacteria-associated signal did not become a reported Helicobacter, Helicobacteraceae or Campylobacterota finding.

There are therefore not presently two independent Morgellons studies converging on the genus Helicobacter. There is one targeted study reporting heterogeneous results within a related bacterial neighborhood, and one untargeted study reporting a much broader lesion-associated signal whose Proteobacteria component prompted—but did not confirm—the comparison.

That distinction matters because broad biological categories can generate compelling patterns without supplying the specificity needed to test them. The older taxonomy made the connection worth noticing. The modern classification and the author’s clarification showed why it could not be carried farther.

The result is less dramatic than independent confirmation of H. pylori in Morgellons skin, but it is more accurate and potentially more productive. The 2026 study still reports a lesion-associated microbial signal containing substantial poorly classified sequence. Its authors plan additional comparative metagenomic work. Future analysis may identify organisms or lineages that the current preprint was not designed to resolve.

For now, the Proteobacteria finding should be treated as the beginning of a question, not the answer to one.

If additional taxonomic analyses, genome bins or deposited sequence records become available, MorgellonsSurvey.org will examine them and update this article accordingly. The present conclusion is limited to what the 2026 preprint analyzed, reported and subsequently clarified through its corresponding author.

References

Lambert AN, Kindschuh WF. “Metagenomics Reveals a Phylogenetically Informed Microbial Signature Associated With Morgellons Disease.” bioRxiv preprint. 2026. doi:10.64898/2026.04.15.718803.

Middelveen MJ, Filush KR, Bandoski C, et al. “Mixed Borrelia burgdorferi and Helicobacter pylori Biofilms in Morgellons Disease Dermatological Specimens.” Healthcare. 2019;7(2):70. doi:10.3390/healthcare7020070.

Kvich L, Burmølle M, Bjarnsholt T, Lichtenberg M. “Do Mixed-Species Biofilms Dominate in Chronic Infections? Need for In Situ Visualization of Bacterial Organization.” Frontiers in Cellular and Infection Microbiology. 2020;10:396. doi:10.3389/fcimb.2020.00396.

Waite DW, Vanwonterghem I, Rinke C, et al. “Comparative Genomic Analysis of the Class Epsilonproteobacteria and Proposed Reclassification to Epsilonbacteraeota.” Frontiers in Microbiology. 2017;8:682. doi:10.3389/fmicb.2017.00682.

Pearson ML, Selby JV, Katz KA, et al. “Clinical, Epidemiologic, Histopathologic and Molecular Features of an Unexplained Dermopathy.” PLOS ONE. 2012;7(1):e29908. doi:10.1371/journal.pone.0029908.

Salter SJ, Cox MJ, Turek EM, et al. “Reagent and Laboratory Contamination Can Critically Impact Sequence-Based Microbiome Analyses.” BMC Biology. 2014;12:87. doi:10.1186/s12915-014-0087-z.