We should thank the antivaxxers. There was a suspicion for years that vaccines over age 60 reduce the incidence of neurodegenerative diseases but due to high uptake, a control group was not obvious, nor ethical to impose.

Now, the control group has appeared and vaccines, especially Shingrex, lower Alzheimer incidence by 20-30%.

In fact, vaccines work far better than the last two FDA approved antibody therapies for dementia costing $26000 a year.

This was a very promising route to prevent neurodegenerative diseases but Trump ironically cut all this research in 2025.