Shingles vaccine linked to 24% lower dementia risk in major US study

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Shingles vaccine linked to 24% lower dementia risk in major US study

TL;DR

  • The Shingrix shingles vaccine is associated with a 24% reduction in dementia risk in older adults.
  • A study examined over 500,000 individuals in U.S. skilled nursing facilities over four years.
  • Vaccinated individuals had an 18.8% dementia rate compared to 24.6% in unvaccinated individuals.
  • Researchers estimate one case of dementia could be averted for every 17 people vaccinated.
  • The findings align with previous research on an older shingles vaccine.
  • The study cannot definitively prove causation due to potential confounding factors like participants' overall health.
  • Further clinical trials are required to confirm the direct link between the vaccine and dementia prevention.