The genus Raoultella is composed of Gram-negative, aerobic, oxidase-negative, catalase-positive, nonmotile, capsulated rods belonging to the Enterobacteriaceae family (1). Raoultella ornithinolytica is found in aquatic and hospital environments (2). Occurrence of Raoultella in human infections is rare, but it has been reported to cause bloodstream and soft tissue infections (2–5). A 67-year-old...

the emergence of multidrug resistance (mdr) and extensively drug resistance (xdr) in acinetobacter baumannii has made an important challenge in the treatment of infections caused by this organism. the ability of carbapenemase production is one of the main mechanisms for the emergence of mdr and/or xdr in a. baumannii. the aim of this study was to detect carbapenemase producer a. baumannii. in t...

In this study, we aimed to evaluate the performance of different phenotypic tests to detect carbapenem-resistant Enterobacteriaceae. Three different phenotypic methods were evaluated: (1) combined-disk test of meropenem plus phenylboronic acid or EDTA reading after 24 h and 48 h; (2) selective/chromogenic read after 24 h and after 48 h; and (3) overnight selective enrichment broth containing 10...

References 1 Yigit H, Queenan AM, Anderson GJ et al. Novel carbapenem-hydrolyzing b-lactamase KPC-1 from a carbapenem-resistant strain of Klebsiella pneumoniae. Antimicrob Agents Chemother 2001; 45: 1151–61. 2 Nordmann P, Naas T, Poirel L. Global spread of carbapenemaseproducing Enterobacteriaceae. Emerg Infect Dis 2011; 17: 1791–8. 3 Naas T, Cuzon G, Truong HV et al. Role of ISKpn7 and deletio...