Vaccines have the power to protect against some of the most dangerous diseases, including COVID-19.

There’s a long history of lifesaving vaccines developed for polio, smallpox, whooping cough, tetanus, influenza and more. Even with all the progress made, we’re facing a constant battle against infectious diseases. Researchers are working hard to respond to new and evolving threats. Boosting your knowledge about vaccines and how they work can help protect even more people.

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