The commitment of the GISIO-SItI to contrast Healthcare- Associated Infections and the experience of the prevalence studies in Sicily

: Surveillance of Healthcare-Associated Infections (HAIs) is essential to improve the quality of health services. The aim of this paper is to report the commitment of the Italian Study Group of Hospital Hygiene (GISIO) of the Italian Society of Hygiene, Preventive Medicine and Public Health (SItI) describing some experiences to contrast HAIs and antimicrobial resistance. Particularly, the commitment to contrast HAIs in intensive care with the SPIN-UTI project - Italian Nosocomial Infections Surveillance in ICUs, and in surgery with the ISCHIA project - Infections of Surgical Site in Arthroplasty Interventions - were described. Furthermore, some activities conducted in Sicily using repeated prevalence studies were reported. The experiences reported confirmed that surveillance is essential to provide health services with information, guidance and tools to manage effectively the risk of HAI and antimicrobial resistance and to monitor the level of achievement of control programmes.