Vaccination Memes

That bacteria thought it could sneak back into the same body for round two? ROOKIE MISTAKE! B memory cells are like the bouncers of your immune system with a photographic memory and a baseball bat. Once they've seen your bacterial mug shot, they're ready to throw down! Your immune system literally keeps a "Most Wanted" list of past invaders and when that same bacteria shows up again thinking it's slick, the B cells are already mobilizing antibody armies faster than you can say "phagocytosis." It's basically the biological equivalent of bringing a knife to a nuclear war. Sorry bacteria, but this body's got RECEIPTS!