A SORT of bead containing antibiotics has been developed to treat osteomyelitis, a painful and dangerous infection of the bone marrow. The biodegradable bead, made of the material used for absorbable surgical stitches, is placed in an incision in the bone and releases high concentrations of antibiotics. According to report in New Scientist, the bead, developed by researchers at the University of Texas, Galveston, reduced infection levels in rabbits by 97 per cent.