Elderly people who have had at least one flu vaccine show up 40% lower chance of developing Alzheimer’s disease over the next four years, compared to those who have not had the flu vaccine, according to a new US scientific study.
The researchers, led by him Dr. Abraham Bookbinder The University of Texas School of Medicine in Houston, which published the Journal of Alzheimer’s Disease, analyzed data on nearly 936,000 people over the age of 65 who had been vaccinated against the flu and as many as the average age of 74 years who had not been vaccinated. It was found that in the following years 5.1% of those vaccinated against influenza were diagnosed with Alzheimer’s, compared to 8.5% of those not vaccinated.
“We have found that vaccinating older people against the flu reduces the risk of developing Alzheimer’s disease for several years. The degree of protection increases with the number of years a person has been vaccinated annually. In other words, the risk of developing Alzheimer’s is lower among those who have been vaccinated regularly each year. “Future research will assess whether influenza vaccination is also associated with the rate of onset of symptoms in patients already with Alzheimer’s dementia,” said Dr. Bookbinder.
The professor of neurology Paul Schultz of the same university stated that “since there is evidence that several vaccines can protect against Alzheimer’s disease, we believe that this is not just a positive effect of the flu vaccine.”
Previous studies have shown that there is a reduced risk of dementia after vaccination for tetanus, herpes, polio, etc. As more and more time passes after the Covid-19 vaccines, the researchers said that a similar benefit for dementia and Alzheimer’s disease should be investigated after the coronavirus vaccines.
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