High-Dose Flu Vaccine Significantly Lowers Risk of Developing Alzheimer’s
- By BSTQ Staff
In a study at the University of Texas Health Science Center at Houston (UTHealth), researchers found that adults 65 and older who received a high-dose influenza vaccine had a significantly lower risk of developing Alzheimer’s disease compared to those who received the standard dose.
In the retrospective cohort study, researchers led by a team at the McGovern Medical School at UTHealth in Houston analyzed health data from roughly 165,000 older adults who received either a high-dose or standard-dose influenza vaccine. They found that the high-dose flu vaccine reduced the risk of Alzheimer’s disease in those 65 and older by nearly 55 percent over a roughly two-year period.
According to the researchers, the findings add to a growing body of evidence linking vaccination, and possibly immune system activity, to reduced dementia risk.
References
Bergeson, L. High-Dose Flu Vaccine Tied to Lower Alzheimer’s Risk in Older Adults. University of Michigan CIDRAP, April 2, 2026. Accessed at www.cidrap.umn.edu/influenza-vaccines/high-dose-flu-vaccine-tied-lower-alzheimer-s-risk-older-adults.