In vitro activity of CXA-101 plus tazobactam (CXA-201) against CTX-M-14- and CTX-M-15-producing Escherichia coli and Klebsiella pneumoniae.

CXA-101, a novel cephalosporin with good antipseudomonal activity, was evaluated against a consecutive and polyclonal collection of extended-spectrum-β-lactamase (ESBL)-producing Escherichia coli (n = 149) and Klebsiella pneumoniae (n = 20), mainly CTX-M-15- (69%) or CTX-M-14 producing (22%). A total of 41% of the E. coli isolates belonged to the international clone O25b-ST131.

Patient characteristics of women and men cared for during the first 10 years at an inpatient hospice ward in Sweden.

The hospice philosophy with focus on the patient's autonomy and the ideal of a good death are the overall objectives of palliative care. Often-raised questions, when discussing hospice, are for which of the incurable ill inpatient hospice is the most optimal care alternative together with who are making use of hospice. The aim of the present study was to describe patient characteristics such as age, marital status, diagnosis, referral source and length of stay (LoS) in relation to gender, during the first decade at an inpatient hospice ward (1992-2001).

Epidemiological MIC cut-off values for tigecycline calculated from Etest MIC values using normalized resistance interpretation.

Objectives: To apply the normalized resistance interpretation (NRI) method to Etest MIC results which have higher precision than conventional log2 dilution MIC tests due to the inclusion of intermediate values. If successful, NRI might provide an objective tool for the definition of epidemiological MIC cut-off values.

Methods: MICs of tigecycline and other antimicrobial agents were determined for 4771 clinical isolates comprising five Gram-positive and 13 Gram-negative species or species groups using the Etest.

Extended antimicrobial resistance screening of the dominant faecal Escherichia coli and of rare resistant clones.

Fifty faecal samples from healthy adults were grown on MacConkey agar and three pink colonies were subcultured, identified to species level and their antimicrobial susceptibility determined. Forty-seven samples yielded 141 isolates of Escherichia coli that were susceptible to most antimicrobials. Resistance was noted for ampicillin (30.

Contribution of efflux to cefuroxime resistance in clinical isolates of Escherichia coli.

Retrospective data showed that resistance to cefuroxime among clinical blood culture isolates of Escherichia coli (2.67%) was more common than resistance to cefotaxime (0.59%) and ceftazidime (1.

Calibration of fusidic acid disk diffusion susceptibility testing of Staphylococcus areus.

Single strain regression analysis, SRA, was used to calibrate disk diffusion fusidic acid susceptibility testing of Staphylococcus aureus in two laboratories using different standard methods but the same interpretative MIC limits. SRA equation constants were calculated using five different fusidic acid disk contents (1.5, 5, 15, 50, 150 microg).