BACKGROUND Gastrointestinal infections with pathogenic Helicobacter species are commonly treated with combination therapies, which often include amoxicillin. Although this treatment is effective for eradication of Helicobacter pylori, the few existing reports are less clear about antibiotic susceptibility of other Helicobacter species. In this study we have determined the susceptibility of gast...

results a total of 18 amoxicillin-clavulanate resistant isolates were obtained from seven different types of retail sausages. only half of them were identified as enterobacteriaceae, but none were esbl-producers. all the 18 isolated strains demonstrated resistance towards amoxicillin-clavulanate, penicillin and oxacillin (100%), cefotaxime (71.4%), cefpodoxime (66.7%), and ampicillin (83.3%). b...

beta-Lactam resistance was studied in 1,072 consecutive P. mirabilis clinical strains isolated at the Clermont-Ferrand teaching hospital between April 1996 and March 1998. The frequency of amoxicillin resistance was 48.5%. Among the 520 amoxicillin-resistant isolates, three resistance phenotypes were detected: penicillinase (407 strains [78.3%]), extended-spectrum beta-lactamase (74 strains [14...

The discovery of Helicobacter pylori (H. pylori) provided a possibility to cure effectively patients with peptic ulcers. Recent studies have shown varying susceptibility of H. pylori strains to antibiotics and increasing resistance to some of the recommended drugs. The purpose of the present study was to evaluate the efficacy of the currently recommended eradication schemes and to assess the in...

The discovery of Helicobacter pylori (H. pylori) provided a possibility to cure effectively patients with peptic ulcers. Recent studies have shown varying susceptibility of H. pylori strains to antibiotics and increasing resistance to some of the recommended drugs. The purpose of the present study was to evaluate the efficacy of the currently recommended eradication schemes and to assess the in...

background currently, there are evidences for the existence of diverse strains of helicobacter pylori with different levels of virulence. in other way, the most important reason of therapeutic failure is resistance to the antibiotics. objectives the aim of this study was to evaluate the relationship between h. pylori drug resistance and the presence of caga gene. patients and methods gastric bi...

This study assessed the prevalence and antibiogram of Shiga Toxin-Producing Escherichia coli O157:H7 from Diarrhoeic HIV/AIDS Patients in Lafia, Central Nigeria. E. coli O157:H7 from stools of consenting HIV/AIDS patients were isolated by culture based, biochemical and serological assays. Confirmed isolates were tested for their susceptibility to commonly used antimicrobial agents using the dis...

Therapy failure of empirical antibiotic treatments prescribed by primary care physicians occurs commonly. The effect of such a treatment on the susceptibility to second line antimicrobial drugs is unknown. Resistance to amoxicillin was rapidly induced or selected in E. coli at concentrations expected in the patient's body. Strains with reduced susceptibility outcompeted the wild-type whenever a...

This study investigated the resistance of various Salmonella strains to beta-lactam antibiotics. Salmonella Minnesota (36 strains) and Salmonella Heidelberg (24 strains) were isolated from broiler chickens and carcasses by the Disk Diffusion Test and resistance genes blaCTX-M-8, blaACC-1 and blaCMY-2 were detected by PCR. Of the 60 strains tested, 80% were resistant to at least one antibiotic. ...

background: helicobacter pylori (h. pylori) resistance to antibiotics has become a global problem and is an important factor in determining the outcome of treatment of infected patients. the purpose of this study was to determine the h. pylori resistance to clarithromycin, metronidazole, and amoxicillin in gastrointestinal disorders patients. materials and methods: in this study, a total of 260...