The Immune System: B Cell, T Cell, Soldier, Spy

In this fusion of storytelling and science, I talk about the immune system, explaining it from different points of view. I try to make this sort of like a spy novel, where you have to piece together the different parts. The immune system is an amazing thing that keeps us safe from pathogens. B Cells and T Cells fight off pathogens, many primary and second defenses try to keep pathogens out of our bodies in the first place.