Flu (influenza) and pneumonia vaccinations are associated with reduced risk of Alzheimer’s disease, according to new research.

Three research studies reported at AAIC 2020 suggest:

At least one flu vaccination was associated with a 17% reduction in Alzheimer’s incidence. More frequent flu vaccination was associated with another 13% reduction in Alzheimer’s incidence.

Vaccination against pneumonia between ages 65 and 75 reduced Alzheimer’s risk by up to 40% depending on individual genes.

Individuals with dementia have a higher risk of dying (6-fold) after infections than those without dementia (3-fold).

«With the COVID-19 pandemic, vaccines are at the forefront of public health discussions. It is important to explore their benefit in not only protecting against viral or bacterial infection but also improving long-term health outcomes,» said Maria C. Carrillo, Ph.D., Alzheimer’s Association chief science officer.

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Materials provided by Alzheimer’s Association. Note: Content may be edited for style and length.