# Stronger flu shot linked to nearly 55% lower Alzheimer's risk

Source: [Health & Medicine News -- ScienceDaily](https://www.sciencedaily.com/releases/2026/11/261105224609.htm) · 2026-11-08 · Medicine
Page: https://themorning.science/story/stronger-flu-shot-linked-to-nearly-55-lower-alzheimer-s-risk-815f64161be9122c
Kind: research · Impact: medium

## In brief

- Researchers at UTHealth Houston analyzed nearly 200,000 adults aged 65 and older.
- Adults who received a high-dose influenza vaccine had nearly 55% lower Alzheimer's risk, according to the report.
- The study reports an association, so the sources do not establish that the vaccine causes the lower risk.

## Why it matters

The finding suggests a possible link between vaccine dose and Alzheimer's risk in older adults, which could inform future research on preventive strategies. It is an association from one study, so it should not yet change individual medical decisions.

## Coverage

- [Stronger flu shot linked to nearly 55% lower Alzheimer's risk](https://www.sciencedaily.com/releases/2026/11/261105224609.htm) — Health & Medicine News -- ScienceDaily, 2026-11-08

Tags: influenza, alzheimer's, vaccination, dementia, older adults

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science