A large French study involving over 28 million people found that Covid-19 vaccination reduced the risk of all-cause death by 25% and lowered the risk of dying from Covid complications by 74%, confirming the vaccine's overall effectiveness despite some limitations and concerns about rare side effects.
New research indicates that the shingles vaccine, particularly the recombinant version, not only prevents shingles but also significantly reduces the risk of heart attacks and strokes in adults over 50, highlighting additional health benefits of vaccination.
A meta-analysis presented at the 2025 European Society of Cardiology Congress suggests that shingles vaccination is associated with a reduced risk of heart attack and stroke, though causality has not been established and further research is needed.
A simulation study from the University of Pittsburgh confirms that higher influenza vaccination rates protect both vaccinated and unvaccinated individuals, with vaccinated people gaining the most protection. The study emphasizes that increasing vaccination coverage reduces overall flu cases and highlights the importance of vaccination for community health, especially when transmission rates are high. However, in scenarios of rapid spread, herd immunity alone may not suffice to protect unvaccinated individuals, underscoring the need for widespread vaccination.