There is emerging evidence that the live herpes zoster (shingles) vaccine might protect against dementia. However, the existing data are limited and refer only to the live vaccine, which is now discontinued in the United States and many other countries in favor of a recombinant vaccine.
Dystopia is easy. You take what people are afraid of and tell them it’s right outside their door. The cure is to open the door and see the truth for yourself. What’s on the other side of the door is your neighbors, and some of them brought donuts.