| inducible amp c beta-lactamase producing gram-negative bacilli from blood stream infections: frequency, antimicrobial susceptibility, and molecular epidemiology in a national surveillance program (scope). | a surveillance study of nosocomial blood stream infections [surveillance and control of pathogens of epidemiologic importance (scope)] was conducted during a 14-month period in 1995 to 1996 in approximately 50 american medical centers. among the 4725 blood stream infections, the etiologic agent was enterobacter spp. in 230, citrobacter freundii in 24, and serratia marcescens in 65. the vast majority of these isolates (89%) had been sent to the university of iowa including 198 enterobacter spp. ( ... | 1997 | 9327251 |