Surveillance of surgical site infections (SSIs) is a priority of the national program to combat healthcare-associated infections. Since 2002, this surveillance has been conducted continuously at the Limoges University Hospital. The methodology is largely based on the national methodology proposed by Raisin (Network for Alert, Investigation, and Surveillance of Healthcare-Associated Infections). Most of the data is extracted directly from the institution’s various IT systems: administrative data, operating room data, and bacteriology data. This automated extraction method enables continuous surveillance and saves time compared to a traditional method. Since its implementation in May 2002, six of the facility’s 10 surgical departments have participated in this surveillance on a voluntary basis, and only data validated by the surgeons are included in the analysis. From 2002 to 2007, we followed a cohort of 42,314 patients with a total of 51,581 procedures. The surgeons’ response rate rose from 86.7% in 2002 to 98.1% in 2007. At the same time, the overall rate of ISO events decreased by nearly 50% (from 3.7% to 1.9%). This continuous monitoring and the regular reporting of results to surgeons help maintain their vigilance while highlighting the effectiveness of the measures implemented. (R.A.)