The highest prevalence rates for multiple sclerosis are found in Iceland, Scandinavia, the
British Isles, and the countries settled by their inhabitants and their descendants, that is, the …

Previously, we studied the effect of population ancestry on the risk of multiple sclerosis (MS)
in US veterans of World War II, comparing by state 1980 US census ancestry data with MS …

Objectives Oslo, the capital of Norway, has a high prevalence of multiple sclerosis (MS). In
recent decades there has been substantial immigration to Oslo from Asia, the Middle East …

Age at onset of multiple sclerosis (MS) symptoms was ascertained for subsets of some 4,400
veterans of World War II who had been adjudged''service-connected''for this condition …

Multiple sclerosis (MS) is a progressive neurological disease of unknown cause.
Investigators are attempting to discover its cause through laboratory investigation and …

We studied the occurrence of multiple sclerosis (MS) in residents of all regions of New
Zealand by analyzing first hospital admissions and deaths. Maoris had a much lower …

A computerized study of past infectious events and neurological parameters revealed the
existence of a history of repeated respiratory-tract infections (RRI) beginning in childhood, in …

Epidemiological data have suggested a role for environmental factors in multiple sclerosis
etiology. Infectious diseases, exposure to toxins, immunizations, nutritional and hormonal …

It has been hypothesized that age at infection with a common microbial agent may be
associated with the risk of multiple sclerosis (MS). The authors addressed this hypothesis by …

We conducted a study of 145 persons with multiple sclerosis who had been identified in a
1970 survey and 145 friend controls, to investigate whether the development of MS was …