As we get older, we face an increased risk of both dementia and shingles – but what if a single vaccine could provide protection against them both? There's already convincing evidence that an older shingles vaccine, developed under the brand name Zostavax, can protect against dementia.

Researchers in the US analysed data from more than 500,000 people and found those who received the shingles jab were 24 per cent less likely to develop dementia than those who did…

As we get older, we face an increased risk of both dementia and shingles – but what if a single vaccine could provide protection against them both? There's already convincing…