MS link to low sunlight and Epstein-Barr

PEOPLE who have been infected with Epstein-Barr virus, coupled with low exposure to sunlight, are more likely to develop multiple sclerosis (MS), research shows.

MS has been linked independently to low levels of sun exposure and to a history of infectious mononucleosis.

UK researchers sought to determine the effect of these two factors together on the incidence of MS across geographical regions of England.

Using nearly 60,000 cases of MS and around 15,000 cases of infectious mononucleosis from hospital admission statistics, they found the effects of sunlight exposure and mononucleosis together explained 72% of the variance in MS prevalence.  

Spring UVB levels were most strongly associated with MS prevalence.

“Lower levels of UVB in the spring season would coincide with a late gestation for offspring born in late spring/early summer,” the authors said. 

“This corresponds with the time for

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