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Video: How Do Vaccines Work To Protect Us?

Vaccines won’t make you sick because they are made of very small amounts of weak or dead germs. More often vaccines provide long-lasting immunity to serious diseases without risking one’s health.

Vaccines help the body’s immune system fight infections faster and more effectively. When someone gets a vaccine, it sparks the immune response, helping the body fight off and remember the germ so it can attack it if the germ ever invades again.

Whenever the immune system comes across an invading germ, it attacks that germ. This is the immune response. The immune system is a network of cells, tissues, and organs that work together to defend the body from harmful germs.  The immune system protects us from the disease by fighting off the invading germs.

Vaccines won’t make you sick because they are made of very small amounts of weak or dead germs. More often vaccines provide long-lasting immunity to serious diseases without risking one’s health.

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