According to a new study, just one flu shot is enough to reduce the risk of Alzheimer’s by 40 percent. In view of the increasing number of cases worldwide, this is an important discovery.
With a vaccination once morest two very different diseases: Researchers at UTHealth Houston in Texas discovered that a flu shot in older adults drastically reduces the risk of Alzheimer’s. This reduces the probability of contracting the disease by a full 40 percent for at least four years. Does this perhaps also apply to corona vaccines?
Study with almost 2 million subjects
The university discovered the connection between the flu vaccine and a reduced risk of Alzheimer’s two years ago. Now, for an even larger sample, the researchers compared data from 935,887 influenza-vaccinated people to those from 935,887 unvaccinated people. During the four-year follow-up visits, 8.5 percent of those unvaccinated developed Alzheimer’s. Of those who had received a vaccine, only 5.1 percent were diagnosed with the disease. For the researchers of the study, which is currently in the “Journal of Alzheimer’s Disease” a significant difference.1
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Annual influenza vaccination apparently strengthens the protective effect
For the scientists involved, Avram Bukhbinder and Paul Schulz, the results once once more underline the protective effect of a flu vaccination once morest Alzheimer’s disease. In their earlier study, the researchers discovered another interesting factor: “The strength of this protective effect increased with the number of years a person received an annual flu shot. In other words, the rate of developing Alzheimer’s was lowest among those who consistently received the flu shot every year.2 This might possibly prevent more than 120,000 new cases a year in Germany alone.3
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Mechanism of action still unknown, but there are indications
How exactly a flu vaccination is able to reduce the risk of Alzheimer’s has hardly been researched. However, the scientists suspect that this is not a specific effect of the flu vaccine. “Instead, we believe that vaccination trickes the immune system into making some changes that protect once morest Alzheimer’s.” Therefore, what we need to focus on is learning more regarding the mechanisms of the immune system that ameliorate or worsen the disease.”
A corona vaccination can also protect once morest Alzheimer’s
Bukhbinder and Schulz therefore consider it possible that the new vaccines once morest Covid-19 might have a similar effect. However, in order to be able to investigate whether there is a similar connection between the Covid-19 vaccination and the risk of Alzheimer’s, further data are required, which are not yet available so soon following the vaccine was introduced.
