Multiple recent studies using natural experiments from vaccine rollouts in Australia, Canada, and Wales found that shingles vaccination is associated with a 20 percent reduction in dementia risk among older adults. Researchers suggest the newer Shingrix vaccine may provide even greater dementia protection than the earlier Zostavax vaccine, though the mechanism behind the unexpected benefit remains unclear.
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Multiple recent studies using natural experiments from vaccine rollouts in Australia, Canada, and Wales found that shingles vaccination is associated with a 20 percent reduction in dementia risk among older adults. Researchers suggest the newer Shingrix vaccine may provide even greater dementia protection than the earlier Zostavax vaccine, though the mechanism behind the unexpected benefit remains unclear.