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Seroprevalence of Epstein-Barr virus in Tunisian patients with multiple sclerosis: Associations with clinical characteristics.
In a study of 188 MS patients, 88% were found to be seropositive for Epstein-Barr virus (EBV), compared to 75% of healthy controls. Higher levels of EBV antibodies were associated with relapse and the relapsing-remitting form. Some female patients with atypical EBV profiles had lower disability scores and visual impairment was noted more frequently in this subgroup.
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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.
Why it matters
This research highlights potential links between EBV and MS clinical manifestations, suggesting that infections may influence disease trajectories. Understanding these relationships is crucial for MS research and patient management.
What this does not prove
The study does not prove a causal relationship between EBV seropositivity and MS characteristics. Further molecular studies are necessary to explore EBV's role in MS progression.
Next milestone
No next milestone was established from the available source.
Study facts
- Study design
- Observational
- Participants / samples
- 188 · Total number of MS patients included in the study.
- Randomised
- Not reported
- Controlled
- Not reported
- Primary endpoint met
- Not reported
- Relevant MS type
- Not reported
- Publication date
- 2026-09-17
- Evidence reviewed
- Abstract only
- Regulatory approval
- Not reported
- Research areas
- Not classified
Original sources
- Primary evidenceSeroprevalence of Epstein-Barr virus in Tunisian patients with multiple sclerosis: Associations with clinical characteristics. ↗DOI: 10.1016/j.msard.2026.107928
Supporting passages (9)
study designMETHODS: A prospective cross-sectional study was conducted in MS Tunisian patients at the MS center of the Neurology Department,Razi University Hospital.Patients were diagnosed according to the 2017-McDonald criteria.EBV serology was assessed by electrochemiluminescence immunoassay, and its associations with clinical characteristics were analyzed.
subjectsRESULTS: A total of 188 MS patients and 42-healthy controls(HC) were included.The mean age at disease onset was 29.8 years.The mean Expanded Disability Status Scale score was 3.49,and the annualized relapse rate was 0.67.EBV serology was positive in 88% of MS patients,while 12% exhibited an atypical EBV profile,compared with 75% EBV seropositivity among HC.VCA-IgG intensity was significantly higher in patients experiencing a relapse at the time of sampling(p = 0.016) and in those with the relapsing-remitting MS phenotype (p = 0.027).Female patients with atypical EBV profiles exhibited lower EDSS scores than seropositive females(p = 0.038).Visual system impairment was more frequent among patients with atypical EBV profiles(40.9%vs.
sample sizeRESULTS: A total of 188 MS patients and 42-healthy controls(HC) were included.The mean age at disease onset was 29.8 years.The mean Expanded Disability Status Scale score was 3.49,and the annualized relapse rate was 0.67.EBV serology was positive in 88% of MS patients,while 12% exhibited an atypical EBV profile,compared with 75% EBV seropositivity among HC.VCA-IgG intensity was significantly higher in patients experiencing a relapse at the time of sampling(p = 0.016) and in those with the relapsing-remitting MS phenotype (p = 0.027).Female patients with atypical EBV profiles exhibited lower EDSS scores than seropositive females(p = 0.038).Visual system impairment was more frequent among patients with atypical EBV profiles(40.9%vs.
sample size basisRESULTS: A total of 188 MS patients and 42-healthy controls(HC) were included.The mean age at disease onset was 29.8 years.The mean Expanded Disability Status Scale score was 3.49,and the annualized relapse rate was 0.67.EBV serology was positive in 88% of MS patients,while 12% exhibited an atypical EBV profile,compared with 75% EBV seropositivity among HC.VCA-IgG intensity was significantly higher in patients experiencing a relapse at the time of sampling(p = 0.016) and in those with the relapsing-remitting MS phenotype (p = 0.027).Female patients with atypical EBV profiles exhibited lower EDSS scores than seropositive females(p = 0.038).Visual system impairment was more frequent among patients with atypical EBV profiles(40.9%vs.
publication date2026-09-17
comparatorRESULTS: A total of 188 MS patients and 42-healthy controls(HC) were included.The mean age at disease onset was 29.8 years.The mean Expanded Disability Status Scale score was 3.49,and the annualized relapse rate was 0.67.EBV serology was positive in 88% of MS patients,while 12% exhibited an atypical EBV profile,compared with 75% EBV seropositivity among HC.VCA-IgG intensity was significantly higher in patients experiencing a relapse at the time of sampling(p = 0.016) and in those with the relapsing-remitting MS phenotype (p = 0.027).Female patients with atypical EBV profiles exhibited lower EDSS scores than seropositive females(p = 0.038).Visual system impairment was more frequent among patients with atypical EBV profiles(40.9%vs.
primary endpointOBJECTIVE: Evaluate EBV seroprevalence and its association with clinical characteristics in Tunisian patients with MS.
findingsRESULTS: A total of 188 MS patients and 42-healthy controls(HC) were included.The mean age at disease onset was 29.8 years.The mean Expanded Disability Status Scale score was 3.49,and the annualized relapse rate was 0.67.EBV serology was positive in 88% of MS patients,while 12% exhibited an atypical EBV profile,compared with 75% EBV seropositivity among HC.VCA-IgG intensity was significantly higher in patients experiencing a relapse at the time of sampling(p = 0.016) and in those with the relapsing-remitting MS phenotype (p = 0.027).Female patients with atypical EBV profiles exhibited lower EDSS scores than seropositive females(p = 0.038).Visual system impairment was more frequent among patients with atypical EBV profiles(40.9%vs.
limitationsTitle: Seroprevalence of Epstein-Barr virus in Tunisian patients with multiple sclerosis: Associations with clinical characteristics.
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