A global systematic review has found that the shingles vaccine is linked to an 18% lower risk of heart attack or stroke in adults. The pioneering analysis, which combined data from 19 studies including observational research and randomized trials, suggests that vaccination against herpes zoster may provide protective cardiovascular benefits in addition to preventing shingles.
Experts say the effect could be related to reducing inflammation caused by shingles, which can contribute to heart and circulatory problems. While the vaccine is currently recommended primarily for older adults or those with weakened immune systems, the findings raise the possibility of broader benefits for younger populations. Further research is needed to confirm these results and understand the underlying mechanisms.
