Recent research tracking dementia cases in Welsh adults suggests that receiving the shingles vaccine, Zostavax, can lower the risk of developing dementia by 20%. The study analyzed health records of over 280,000 older adults and noted a natural experiment created by vaccination eligibility rules. Health experts stress the importance of this finding as dementia affects millions worldwide and currently has no cure. With strong evidence backing the protective effect of the shingles vaccine, this research could influence future health policies and possibly reduce dementia incidences.
"For the first time we are able to say much more confidently that the shingles vaccine causes a reduction in dementia risk. If this truly is a causal effect, we have a finding that's of tremendous importance."
"Public health policy dictated that... people born on or after 2 September 1933 became eligible for the Zostavax shot, while those who were older missed out."
"Vaccination led to a 20% reduction in dementia risk, with the strongest effect in women."
"Dementia affects more than 55 million people globally and is the leading cause of death in the UK. One in three will develop the condition in their lifetime."
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