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(A-B) Gram positive cocci, and what appears to be biofilm, was evident on the distal portion (A) and between threads (B) of an ex vivo orthopedic screw excised at day 7. (C-D). Separate fragments adjacent to the defect/screw site from a representative untreated (empty alginate) control femur collected at day 8 revealed dispersed Gram positive cocci.
