Why the vaccine may protect against dementia

Offit and other experts said there are two possible reasons that the shingles vaccine might protect against dementia. First, previous research suggests that herpes infection might play a role in the development of dementia.

Shingrix dramatically decreases the reactivation of the herpes virus that causes chickenpox. It’s 97 percent effective at preventing shingles in people ages 50 to 69 with healthy immune systems, according to the CDC.

Experts also hypothesize there might be something about the particular way Shingrix stimulates the body’s immune system against shingles that decreases the chances of dementia.”

https://www.washingtonpost.com/wellness/2024/07/30/shingles-vaccine-lower-dementia-risk/