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Multiple sclerosis and delayed mumps
1Department of Psychiatry, Walter Mackenzie Centre, University of Alberta, Canada.
Abstract:
To test the hypothesis that mumps occurs less frequently and later in patients with multiple sclerosis, histories were taken from patients and matched controls by a single observer at a university hospital in Canada, and in the course of domiciliary visits in England. 63 consecutive patients with multiple sclerosis in two neurological practices, and 63 controls matched for age, sex and childhood domicile, together with 29 sibs of English patients were studied. Patients had mumps at an older age (12.3:8.6, p less than 0.04) and less frequently (33/63 vs 60/92, p = 0.08). Multiple sclerosis patients display a partial immunity to mumps, of which the most obvious explanation is a preceding infection by an antigenically related paramyxovirus, that is, by either the Newcastle Disease virus, or parainfluenza.
Insights
Multiple sclerosis patients experienced mumps less often and at a later age. This suggests a potential partial immunity, possibly due to prior exposure to related viruses like parainfluenza.
Area of Science:
- Neurology
- Epidemiology
- Virology
Background:
- Multiple sclerosis (MS) is a chronic neurological disease.
- The potential link between viral infections and MS is an area of ongoing research.
- Mumps, a viral illness, has been investigated for its potential role in neurological conditions.
Purpose of the Study:
- To investigate the hypothesis that mumps occurs less frequently and at a later age in individuals with multiple sclerosis.
- To explore potential immunological connections between mumps and multiple sclerosis.
Main Methods:
- A case-control study design was employed.
- Histories of mumps infection were collected from 63 consecutive multiple sclerosis patients and 63 matched controls.
- Data were gathered through interviews by a single observer in Canada and England.
Main Results:
- Multiple sclerosis patients reported a history of mumps significantly less frequently compared to controls (33/63 vs. 60/92).
- The average age of mumps infection was older in the multiple sclerosis group (12.3 years) than in the control group (8.6 years).
- A trend towards reduced mumps incidence in MS patients was observed (p=0.08).
Conclusions:
- Multiple sclerosis patients appear to exhibit partial immunity to mumps.
- This partial immunity may be attributed to prior infection with antigenically related paramyxoviruses, such as Newcastle Disease virus or parainfluenza.
- Further research is warranted to elucidate the immunological mechanisms involved.