According to a study that was published in The Journal of Alzheimer's Disease and conducted on nearly two million people, those who received at least one dose of flu vaccine had a 40% lower chance of developing Alzheimer's disease. People who received a flu shot each year had a lower rate of developing Alzheimer’s.
"We found that influenza vaccination in older adults lowers the risk of developing Alzheimer’s disease over several years," stated the authors. They analyzed 935.887 influenza-vaccinated patients and 935.887 non-vaccinated.
Study participants showed that 5.1% of those who had been vaccinated developed Alzheimer's disease, while 8.5% did not and were diagnosed with the condition.
Future research should examine whether flu vaccination can also be associated with the rate at which patients suffering from Alzheimer's disease progress," stressed the researchers. However, they have not yet identified the causes. . They stress that there is evidence that multiple vaccines can protect against Alzheimer’s disease.