Phenotypic Diversity Caused by Differential RpoS Activity among Environmental Escherichia coli Isolates

High diversity among environmental Escherichia coli isolates from a bovine feedlot.

Approximately 280 Escherichia coli isolates were isolated from a bovine feedlot at the University of Connecticut campus via enrichment in lauryl tryptose broth and random selection from MacConkey plates. The E. coli subspecies diversity was estimated by employing whole-cell BOX-PCR genomic fingerprints. A total of 89 distinct operational taxonomic units (OTUs) were identified by employing a cri...

Evaluation of Efflux pump activity among Uropathogenic Escherichia coli and Klebsiella pneumonia multiple- Drug Resistance isolates

Antibiotic resistance is a phenomenon in which antibiotic used to treat bacteria becomes useless due to resistance mechanism. Increased drug resistance and occurrence of Multiple Drug Resistance in bacteria specificity nosocomial and Urinary Tract Infection bacteria has reduced the possibilities of treating these infectious diseases. Efflux pumps are one of the major mechanism of MDR in bacteri...

Phenotypic and Genotypic Study of Antibiotic Resistance among Escherichia coli Isolates from Human Urinary Infection Cases in Bojnord Province

Background and Objective: Bacterial agents are the most common causes of urinary infection with Escherichia coli as the major causative organism. Accordingly, the current study aimed to determine the antibiotic resistance among Escherichia coli isolates from human urinary infection cases. Materials and Methods: The current experimental study was carried out on 50 specimens of positive cultures...

Case Report of Meningoencephalitis in Calves Caused by Escherichia coli

Genetic variation among Escherichia coli isolates from human and calves by using RAPD PCR

Background: Various strains of Escherichia coli (E. coli) are known as major causes of intestinal and extraintestinal infections in humans and various animal species. Molecular methods are important for the identification of bacterial isolates and nucleotide sequence variations, as well as information on tracking bacterial agents related to the outbreaks, the frequency of the bacterial genetic ...