| emergence of serine carbapenemases (kpc and sme) among clinical strains of enterobacteriaceae isolated in the united states medical centers: report from the mystic program (1999-2005). | among 8885 enterobacteriaceae tested in the 1999 to 2005 period as part of the usa meropenem yearly susceptibility test information collection (mystic) program, 51 strains with increased imipenem and meropenem mic values (> or =2 microg/ml) were detected. bla(kpc) was identified from 28 klebsiella pneumoniae from 3 medical centers in the new york city area (8 ribotypes), 2 klebsiella oxytoca from arkansas (same ribotype), 7 citrobacter freundii (6 from new york [5 ribotypes] and 1 from delaware) ... | 2006 | 17020798 |
| emergence of domestically acquired ceftriaxone-resistant salmonella infections associated with ampc beta-lactamase. | ceftriaxone, an expanded-spectrum cephalosporin, is an antimicrobial agent commonly used to treat severe salmonella infections, especially in children. ceftriaxone-resistant salmonella infections have recently been reported in the united states, but the extent of the problem is unknown. | 2000 | 11135779 |