 The problem of interest is that doctors are looking for new antibiotic treatments for bone and joint infections. Treatment for bone and joint infection is not standardized, which allows a wide range of antibiotic therapy to potentially be given. A type of bacteria called S. aureus is the most common cause of bone and joint infection. Methicillin resistant S. aureus MRSA is a type of bacteria that is not killed by some antibiotics, and it is increasingly common in U.S. and non-U.S. medical centers. Trauma-associated bone and joint infection is also a common problem. Victims of major trauma often suffer bone fractures, which require temporary or permanent use of metal or other synthetic devices such as external-fixation pins, plates, and screws. These synthetic devices can also get infected and cause bone and joint infections. 