Not enough evidence to confirm shingles vaccination reduces dementia risk, says HIQA (irishexaminer.com)

• HIQA finds insufficient evidence for causation.
• Observational studies show only association.
• Guidance for Irish clinicians and policymakers.

"Ireland's HIQA states that studies show an association between shingles vaccination and reduced dementia risk, but cannot prove causation. The assessment guides Irish clinicians and policymakers on vaccine benefits."