MRSA - Methicillin-resistant Staphylococcus aureus - Saw a 60 Minutes piece on MRSA, the antibiotic-resistant strain of staph. It's spread by person-to-person contact, and vulnerable to only one antibiotic--the antibiotic of last resort--vincomycin. And doctors expect this "superbug" to soon develop a resistance to that sole, remaining weapon. What do we do? More research. They hope for a vaccine, and other antibiotic treatments are expected on the horizon. Will this happen fast enough?