Research presented at an American Stroke Association conference suggests a shingles vaccine may be the strongest protection against stroke for people younger than 80.
A study followed over a million Medicare beneficiaries 66 years or older for an average of almost four years.
Researchers found that he Zoster Vaccine Live lowered the risk of stroke by nearly 20 per cent for people under 80.
For people older than 80, it reduced the risk by about 10 per cent.
One in three people who have had chickenpox will develop shingles in their lifetime.
The study aims to encourage people 50 years and older to get vaccinated to doubly benefit from a reduced risk of shingles and stroke.
The research was presented at the American Stroke Association International Conference.