All vaccines are training data for the immune system, which is a learning machine whose operation is a little bit like a genetic algorithm. It generates and sieves variation using a vocabulary of pre-encoded building blocks to fit the targets it's presented with.
It's an incredible system, and a product of probably a billion years of evolution since the first multicellular organisms had to protect themselves from infection.
It's an incredible system, and a product of probably a billion years of evolution since the first multicellular organisms had to protect themselves from infection.