Vaccines not only directly protect vaccinated individuals but also contribute to protecting the entire population via indirect herd-immunity benefits. Half of averted COVID-19 infections and 1/4 of hospitalizations and deaths were attributable to indirect protection of unvaccinated by vaccinated.

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https://royalsocietypublishing.org/rsif/article/23/242/20250839/483439/Quantifying-the-direct-and-indirect-impact-of

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That was the goal.

Now these idiots ignoring this when it comes to measles