The antimicrobial susceptibility of clinical isolates of Brachyspira hyodysenteriae in Spain was monitored, and the underlying molecular mechanisms of resistance were investigated. MICs of tylosin, tiamulin, valnemulin, lincomycin, and tylvalosin were determined for 87 B. hyodysenteriae isolates recovered from 2008 to 2009 by broth dilution. Domain V of the 23S rRNA gene and the ribosomal prote...

A number of surveillance studies have been conducted looking for organisms with decreased susceptibility to antimicrobial agents in natural environments. There was no evidence of shifts in populations or development of resistance to the antimicrobial agents in any of these studies. Nor was there any evidence of a correlation of resistance between antimicrobial-tolerant strains and antibiotic re...

To the Editor—We read with interest the report by Mizuta and colleagues on the role of a combination antibiogram for empirical treatment of Pseudomonas aeruginosa infection. The emergence of multidrug-resistant (MDR) gramnegative microorganisms, especially Acinetobacter baumannii, has created prescribing dilemmas for physicians trying to select empirical therapy. In Thailand, the national incid...

The Meropenem Yearly Susceptibility Test Information Collection (MYSTIC) Program is a global, longitudinal antimicrobial resistance surveillance network of greater than 100 medical centers worldwide monitoring the susceptibility of bacterial pathogens to carbapenems and other broad-spectrum agents. Between 1999 and 2002, 15 US medical centers referred up to 200 nonduplicate isolates from clinic...

IRANIAN JOURNAL OF PATHOLOGY Vol.10 No.4, Fall 2015 Background: This study was done to detect multidrug resistant (MDR) and extremely drug resistant (XDR) of Pseudomonas aeruginosa among strains isolated from patients in Tehran, Iran, due to importance of these phenotypes in treatment of human infections. Methods: Eighty eight P. aeruginosa were isolated from patients in Tehran, Iran, and ident...

BACKGROUND AND PURPOSE In order to reduce the turnaround time for laboratory diagnosis of bacteremia, the efficacy of identification and antimicrobial susceptibility testing using samples taken directly from positive BacT/ALERT standard aerobic and standard anaerobic blood culture bottles was evaluated. METHODS 160 positive blood culture bottles were examined and incubated at 35 degrees C in ...

In this study, Invitro evaluation of some Iranian plants against Staphylococcus aureus Isolation of Urinary Tract Infection by microtiterplate method. All 12 strains of Staphylococcus aureus isolated from urine culture of hospitalized patients during the years 2012- 2013. Minimum Inhibitory Concentration (MIC) of plant extract and essential oilagainst bacteria were determined ...

BACKGROUND Neisseria gonorrhoeae can rapidly develop resistance to antimicrobial agents. Over the last years, decreased gonococcal susceptibility to third-generation cephalosporins, especially cefixime, emerged worldwide. Therefore, current international guidelines recommend dual therapy for gonorrhoea with ceftriaxone plus either azithromycin or doxycycline. Gonococcal susceptibility data in S...

OBJECTIVE To describe antimicrobial susceptibility testing practices of veterinary diagnostic laboratories in the United States and evaluate the feasibility of collating this information for the purpose of monitoring antimicrobial resistance in bacterial isolates from animals. DESIGN Cross-sectional study. PROCEDURES A questionnaire was mailed to veterinary diagnostic laboratories throughou...