نتایج جستجو برای: nalidixic acid resistance
تعداد نتایج: 1091955 فیلتر نتایج به سال:
Introduction & Objective: Urinary tract infections (UTI) are a common cause of morbidity and its diagnosis and treatment can lead to health. In this study we evaluated the efficacy of the long- term low-dose antibiotic prophylaxis with Cotrimoxazole and Nalidixic-acid in the patients with recurrent UTI. Materials & Methods: This study is a before and after clinical trial without control grou...
BACKGROUND Enterotoxigenic Escherichia coli (ETEC) is a common cause of bacterial infection leading to acute watery diarrhea in infants and young children as well as in travellers to ETEC endemic countries. Ciprofloxacin is a broad-spectrum antimicrobial agent nowadays used for the treatment of diarrhea. This study aimed to characterize ciprofloxacin resistant ETEC strains isolated from diarrhe...
Objective: Escherichia coli is one of the most important causes agents of urinary tract infection in human. Thus, identification of Escherichia coli resistance patterns seems to be necessary. traT gene has been reported variable in Escherichia coli strains isolated from urinary tract infection. Therefore, the aim of this study was to investigate the prevalence of uropathogenic Escherichia coli ...
Abstract Background and Objective: Escherichia coli is the most common cause of urinary tract infections in children and the leading cause of intra-abdominal infections (peritonitis and abscess) followed intestinal injuries. Urinary tract infection, including cystitis and pyelonephritis, is a common childhood infection. E. coli causes more than 90 percent of the community acquired and 50% of ho...
Background: Multidrug resistant Enterobacteriaceae which was confined to the hospital environments is now emerging in the domestic food related environments as well. The main objective of the present study was to investigate the prevalence of antibiotic resistant Enterobacteriaceae in the domestic food related environments. Methods: Resistance to ampicillin, chloramphenicol, ...
This study describes the pattern and extent of drug resistance in 1,774 strains of Salmonella enterica serovar Typhi isolated across Asia between 1993 and 2005 and characterizes the molecular mechanisms underlying the reduced susceptibilities to fluoroquinolones of these strains. For 1,393 serovar Typhi strains collected in southern Vietnam, the proportion of multidrug resistance has remained h...
Twelve quinolone-resistant clinical isolates of Escherichia coli (nalidixic acid MICs, 64 to 512 micrograms/ml; norfloxacin MICs, 0.25 to 8 micrograms/ml) were transformed with plasmid pJSW101 carrying the gyrA+ gene and with plasmid pJB11 carrying the gyrB+ gene to examine the proportion of gyrA and gyrB mutations. Transformation with pJSW101 resulted in complementation (nalidixic acid MICs, 4...
OBJECTIVE To establish the relative importance of Salmonella enterica serovar Typhi with non-classical quinolone resistance. METHODS Eight hundred and ninety-one isolates of S. Typhi, isolated between 2004 and 2011, were tested for antibiotic susceptibility determination using disc diffusion and E-test. The mechanisms of fluoroquinolone resistance were studied in a sub-set of the NALS (nalidi...
This paper reports the first case of Haemophilus quentini bacteremia with reduced susceptibility to levofloxacin and resistance to nalidixic acid identified by 16S rRNA sequencing. There was an S 84 L substitution in gyrA and an S 84 I substitution in par C. The isolate had co-resistance to ampicillin (beta-lactamase positive) and tetracycline mediated by the tet(B) gene.
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