By way of example, inflammation intensifies as immune cells show up in force and devour the infection. Some immune cells blow themselves up in the process. Others nip off parts of the infection and carry them away to be assessed in a defense hub called a lymph node. There, the bits of infection are shared with swarms of passing defenders called T cells and B cells. These are the immune system’s most advanced fighters; they are, in fact, two of the most effective biological structures in the world.
