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A Welsh health policy provided a rare opportunity for researchers to examine the real-life impact of a vaccine and dementia risk.

A unique Welsh health policy provided a rare opportunity for researchers. The study, led by researchers at Stanford Medicine and recently published in the journal Nature, strengthened evidence that shingles vaccination may lower dementia risk. In 2013, Wales began a shingles vaccination program that made individuals eligible for the shingles vaccine when they reached age 79. Those who were 80…