HIQA finds insufficient evidence that shingles vaccine prevents dementia (imt.ie)

• HIQA finds insufficient evidence to confirm shingles vaccine prevents dementia
• Observational studies show association but not causation
• No change to current vaccination recommendations for shingles
• Further research including RCTs recommended

"HIQA has assessed the evidence on whether the shingles vaccine can prevent dementia. Their health technology assessment concludes that current studies show a possible association but are not robust enough to establish causation. The findings have implications for vaccination policy and dementia prevention strategies in Ireland. HIQA recommends further research, including randomized controlled trials, to clarify the relationship. The report does not alter current vaccination recommendations for shingles prevention but notes the need for updated guidelines if evidence strengthens."