Ever wonder what’s happening inside your body when you are sick?! Our bodies have the phenomenal ability to recognize hundreds of living entities that cause disease, known as pathogens, to attack them, and to keep us healthy. At our all-ages friendly booth, UCSD Biology scientists will explain parts of the immune system that are responsible for keeping us healthy and answer any questions you may have. Come learn how this amazing network recognizes and defends your body against foreign invaders!