Leave your feedback Share Copy URL https://mypepack.gophersport.com/video/?vid=L0a7rdp2750 Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter How do vaccines teach your body to fight germs? [Um2Qq9Ihw55] Health Updated on August 06, 2026 EDT — Published on August 06, 2026 EDT What if your body could beat a germ before you ever got sick? That's exactly what vaccines do — find out how on this episode of Whoa, How! • A vaccine puts a tiny, safe piece of a germ into your body — just enough for your immune system to notice and learn. • Your immune system builds defenders called antibodies — custom-shaped to stop that exact germ. It's like a fire drill for your body! • When the practice is done, special memory cells stick around for years — ready to stop the real germ in seconds. • Vaccines made smallpox — a disease that once hurt millions of people — disappear from Earth completely. ▶ Watch next: How do bacteria multiply so fast once they get inside you? Coming up on Whoa, How! Sources: • CDC — Explaining How Vaccines Work: • WHO — What Is Vaccination?: • CDC Pink Book — Principles of Vaccination: • WHO — Global Immunization Saved 154 Million Lives: #WhoaHow #HowVaccinesWork #ScienceForKids #HowThingsWork #KidsLearn gxOm4Bli9mj gN2uyb119RV qkPvaYaOcxB olorCbSqXWp kdkGvZMgeNC lU9yqXJahfc
What if your body could beat a germ before you ever got sick? That's exactly what vaccines do — find out how on this episode of Whoa, How! • A vaccine puts a tiny, safe piece of a germ into your body — just enough for your immune system to notice and learn. • Your immune system builds defenders called antibodies — custom-shaped to stop that exact germ. It's like a fire drill for your body! • When the practice is done, special memory cells stick around for years — ready to stop the real germ in seconds. • Vaccines made smallpox — a disease that once hurt millions of people — disappear from Earth completely. ▶ Watch next: How do bacteria multiply so fast once they get inside you? Coming up on Whoa, How! Sources: • CDC — Explaining How Vaccines Work: • WHO — What Is Vaccination?: • CDC Pink Book — Principles of Vaccination: • WHO — Global Immunization Saved 154 Million Lives: #WhoaHow #HowVaccinesWork #ScienceForKids #HowThingsWork #KidsLearn gxOm4Bli9mj gN2uyb119RV qkPvaYaOcxB olorCbSqXWp kdkGvZMgeNC lU9yqXJahfc