Science Common Sense

304 - How do vaccines work to protect us from diseases?

Vaccines are special medicines that help our bodies fight diseases. Here's how they work:

  1. A vaccine is made with a tiny, harmless piece of a disease germ or a weak version of the germ.
  2. When you get a vaccine, your body recognizes the germ as an enemy and starts to fight it.
  3. Your immune system creates special warriors called antibodies that can kill the disease germ.
  4. These antibodies remember the germ so that if you ever encounter it again, they can quickly fight it off.
  5. This way, vaccines help keep you safe from diseases and prevent you from getting sick.

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