Oh look: The Shingles Vaccine seems to help prevent dementia. It makes sense, herpes viruses can damage the brain by causing encephalitis or meningitis (I confuse those a lot so I don’t remember I’m sorry) so it makes sense that this could protect the brain.
“Question What is the effect of herpes zoster vaccination on the probability of receiving a new diagnosis of dementia?
Findings In this quasi-experimental study using electronic health record data from Australia, being eligible for herpes zoster vaccination based solely on date of birth significantly decreased the probability of receiving a new dementia diagnosis during 7.4 years by 1.8 percentage points.
Meaning By taking advantage of a quasi-experiment, this study provides evidence for a beneficial effect of herpes zoster vaccination for preventing or delaying dementia that is more likely to be causal than the associations reported in the existing correlational evidence.”
https://jamanetwork.com/journals/jama/fullarticle/2833335
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