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Research summary · AI summary · not yet reviewedHuman studyCase reportPublished in a peer-reviewed journal
Fatal Neuroinvasive Disease in a Female with Multiple Sclerosis
A 37-year-old woman with multiple sclerosis on long-term rituximab developed rapidly progressive dementia. CSF metagenomic sequencing identified Potosi virus, revealing its genome segments. A postmortem examination indicated diffuse meningoencephalitis with significant T-cell inflammation.
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This plain-English summary was written by AI from a published abstract and may contain errors. It is not medical advice. Read the original study and talk to your MS team before making decisions about treatment.
- Human efficacy
- Not established from this source
- Mechanism
- Not reported
- Evidence strength
- Limited
- Outcome
- Not reported
Why it matters
This finding highlights a potential neuroinvasive capability of Potosi virus in immunocompromised individuals, raising concerns for patients with similar conditions.
What this does not prove
Evidence is limited as it is based on a single case report with no generalizable data.
Next milestone
No next milestone was established from the available source.
Study facts
- Study design
- Case report
- Participants / samples
- Not reported
- Randomised
- Not reported
- Controlled
- Not reported
- Primary endpoint met
- Not reported
- Relevant MS type
- Not reported
- Publication date
- 2026-10-29
- Evidence reviewed
- Abstract only
- Regulatory approval
- Not reported
- Research areas
- Not classified
- Biological target
- Not reported
- Pathway
- Not reported
- Population
- 37-year-old woman with multiple sclerosis
- Size of effect
- Not reported
- Secondary endpoints
- Not reported
- MRI endpoints
- Not reported
- Biomarkers
- Not reported
- Safety
- Not reported
Original sources
- Primary evidenceEstablishing Potosi Virus as a Human Pathogen: Fatal Neuroinvasive Disease in a B-Cell-Depleted Patient. ↗DOI: 10.1212/wnl.0000000000218683
Supporting passages (11)
study designCase report.
subjectsTo establish Potosi virus, a mosquito-borne member of the family Peribunyaviridae, as a neuroinvasive human pathogen.
speciesA 37-year-old woman with multiple sclerosis on long-term rituximab developed rapidly progressive dementia.
publication datePublication date: 2026-10-29
findingsCSF metagenomic sequencing detected all 3 genome segments for Potosi virus.
populationRESULTS: A 37-year-old woman with multiple sclerosis on long-term rituximab developed rapidly progressive dementia.
limitationsTitle: Establishing Potosi Virus as a Human Pathogen: Fatal Neuroinvasive Disease in a B-Cell-Depleted Patient.
peer reviewedPublication types: Journal Article; Case Reports
subjectsMeSH terms: Humans; Female; Fatal Outcome; Adult; B-Lymphocytes; Meningoencephalitis; Multiple Sclerosis; Brain
subjectsPublication types: Journal Article; Case Reports
study designPublication types: Journal Article; Case Reports
AI assessment, not yet reviewed by a person · version 1 · Community votes are separate from evidence review.