Legislation, medical group disagree on approaches By Laura Ungar lungar@courier-journal.com The Courier-Journal After knee replacement surgery at a Lexington hospital, Orvil Hazelton said he got a staph infection that ultimately cost him his left leg. Two new initiatives seek to change that by targeting hospital-associated infections that federal officials estimate strike 2million Americans a year, kill 100,000, and could be reduced if hospital workers simply washed their hands more often.