More evidence shows shingles vaccine protects against dementia. What's really going on?

More evidence shows shingles vaccine protects against dementia. What's really going on?
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The shingles vaccine may significantly help protect older adults against dementia, a growing body of evidence shows. Exactly how is unclear. The nervous system, however, likely holds clues. Shingles, a condition triggered by the reactivation of the varicella-zoster virus in the body, can cause ...