The document discusses strategies for preventing surgical site infections (SSIs). It outlines evidence-based practices like having patients shower with soap or antiseptics before surgery, performing skin preparation in the operating room with alcohol-based agents, and considering intraoperative irrigation of tissues with aqueous iodophor solution. While some strategies are recommended, evidence on others is uncertain, such as optimal timing of preoperative bathing or use of antimicrobial sealants after surgery. The goal is to reduce the human and financial costs of SSIs using preventative methods that are proven to be effective.