A routine breakfast turned dangerous in 2010, when millions of eggs from Iowa became the source of a widespread Salmonella outbreak—an episode that revealed how an invisible microbe can slip unnoticed from farm to plate. In this episode, we trace how Salmonella moves from chickens and eggs into the human body, survives stomach acid, and uses specialized molecular tools to invade intestinal cells and multiply. As the immune system fights back, the familiar symptoms of fever and diarrhea emerge—not as accidents, but as part of the body’s own defense. Along the way, the story separates everyday food poisoning from the far deadlier typhoid strain, offering a reminder that food safety, proper cooking, and public health remain our strongest protection against a bacterium that thrives in plain sight.

https://youtu.be/nQf-lystVn4?si=eZn9BnVqU1OdRDC0