Percentage of hospitals participating in the Agency for Healthcare Research and Quality’s Comprehensive Unit-Based Safety Program (CUSP) that reported zero central-line-associated bloodstream infections (CLABSIs) during a quarter of 2011. That figure is up from 27.3% the year before. CUSP (www.OnTheCuspStopHAI.org) was launched in 2009 to promote the use of customizable, standardized checklists of evidence-based interventions to prevent hospital-acquired infections. It now includes 1,055 hospitals in 44 states, and the program collectively charted a decrease from 1.87 CLABSIs per 1,000 central-line days to 1.25, a 33% reduction.