Shingles Vaccination Reduces Mild Cognitive Impairment and Dementia-Related Deaths, Study Finds
By
Archelaos
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Summary
A natural experiment study found that herpes zoster (shingles) vaccination reduces the occurrence of mild cognitive impairment and deaths due to dementia. The research builds on previous findings that the vaccine appears to prevent or delay dementia diagnoses, and suggests these protective effects are not specific to any particular dementia type. The study utilized vaccination program timing as a natural experiment to analyze effects across different stages of dementia progression.
Key quotes
· 4 pulledUsing natural experiments, we have previously reported that live-attenuated herpes zoster (HZ) vaccination appears to have prevented or delayed dementia diagnoses in both Wales and Australia.
Here, we find that HZ vaccination also reduces mild cognitive impairment diagnoses and, among patients living with dementia, deaths due to dementia.
Exploratory analyses suggest that the effects are not driven by a specific dementia type.
Our approach takes advantage of the fact that individuals who had their eightieth birthday just after the start date of the HZ vaccination program in Wales...
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