Gugs Mhlungu speaks to Dr Jeremy Nel, a physician and infectious diseases specialist, and the head of infectious diseases at Helen Joseph Hospital and the University of the Witwatersrand, about shingles, about how the shingles vaccine works, and emerging research suggesting that vaccination may also be associated with a lower risk of dementia.

While several studies have found this intriguing link, the evidence is still observational and does not yet prove that the vaccine prevents dementia.

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