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Vaccination to prevent dementia? New research suggests one way viral infections can accelerate neurodegeneration

One in nine Americans ages 65 and over had Alzheimer’s disease in 2022, and countless others were indirectly affected as caregivers, health care providers and taxpayers. There is currently no cure—available treatments primarily focus on prevention by encouraging protective factors, such as exercise and healthy diet, and reducing aggravating factors, such as diabetes and high blood pressure.