LURKING in our homes, hospitals, schools, and farms is a terrifying pathogen that is evolving faster than the medical community can track it or drug developers can create antibiotics to quell it. That pathogen is MRSA--methicillin-resistant Staphyloccocus aureus--and Superbug is the first book to tell the story of its shocking spread and the alarming danger it poses to us all. Doctors long thought that MRSA was confined...