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Study finds no long-term link between vaccines, MS


An investigation to find out if vaccines heightened the risk of multiple sclerosis found no long-term link between the two. Researchers did find a short-term connection in younger patients attributable to existing disease.

The authors, led by Annette Langer-Gould, M.D., Ph.D., of Kaiser Permanente Southern California, looked at vaccines – specifically those for hepatitis B and human papillomavirus – and MS and found no associations up to three years later. The only associations found in the data they examined from Kaiser Permanente Southern California were in patients younger than 50 years old, but the associations disappeared after 30 days. The results suggest that vaccines may accelerate the transition from subclinical to overt autoimmunity with pre-existing disease.

“Our data do not support a causal link between current vaccines and the risk of MS … Our findings do not warrant any change in vaccine policy,” researchers said.

The findings were published in the October issue of JAMA Neurology

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