Shigella species and enteroinvasive strains of Escherichia coli cause disease by invasion of the colonic epithelium, and this invasive phenotype is mediated by genes carried on 180- to 240-kb plasmids. In addition, at least eight loci on the Shigella chromosome are necessary for full expression of virulence. The products of these genes can be classified as (i) virulence determinants that direct...

PURPOSE We phylogenetically analyzed the Escherichia coli strains isolated from children with urinary tract infection (UTI) in 2 regions of Korea. Virulence factors (VFs) and antibiotic resistance of the strains were also determined to compare the possible differences. METHODS A total of 138 E. coli strains were collected from the 2 regions; Gyeongin (78 strains) and Gyeongnam (60 strains). T...

To identify bacterial predictors of recurrence and/or persistence in acute cystitis, extended virulence genotypes were compared with clonal background and epidemiologic status among 74 Escherichia coli urine isolates from women with first or recurrent episodes of urinary tract infection (UTI). Sequential isolates from patients with recurrent UTI were classified, using macrorestriction analysis,...

INTRODUCTION Extraintestinal pathogenic Escherichia coli (ExPEC) is associated with various diseases such as urinary tract infections, neonatal meningitis and septicemia. There are many virulence factors (VF) encoded by genes in ExPEC, including papC, papG, ecpA, iroN, fyuA, iutA, ompTp, tsh, hlyF, hlyA and iss. These virulence genes may be present in pathogenicity islands (PAI) or plasmids. ...

Acinetobacter baumannii is a strictly aerobic bacterium which causes severe infections, however its pathogenic characteristics are not well defined. Thirteen A. baumannii strains isolated from urine of hospitalized and nonhospitalized patients with different ages were investigated for the presence of virulence factors. The isolates belonged to biotypes 2, 6, and 9 and were sensitive to imipenem...

Abstract Pathogenic strains of Escherichia coli may invade the subcutaneous tissue poultry and cause cellulitis, whilst pathogen also lesions in internal organs such as liver. Current paper co-relates virulence genes characteristic Avian (APEC) broilers´ cellulitis liver lesions. One hundred carcasses were retrieved from production chain an avian abattoir state Bahia, Brazil, between August 201...

Avian pathogenic Escherichia coli (APEC) causes extensive mortality in poultry flocks, leading to extensive economic losses. To date, little information is available on the molecular basis of antimicrobial resistance in APEC in Africa. Therefore, the objective of this study was to characterize the virulence and antimicrobial resistance of multidrug-resistant APEC isolated from septicemic broile...

Introduction: Extraintestinal pathogenic Escherichia coli (ExPEC) is associated with various diseases such as urinary tract infections, neonatal meningitis and septicemia. There are many virulence factors (VF) encoded by genes in ExPEC, including papC, papG, ecpA, iroN, fyuA, iutA, ompTp, tsh, hlyF, hlyA and iss. These virulence genes may be present in pathogenicity islands (PAI) or plasmids. M...

Sulfonamide resistance remains prevalent among clinical isolates of Escherichia coli in the United Kingdom, despite a dramatic (>97%) national decline in the rate of prescription of sulfonamides in the 1990s. To investigate potential mechanisms accounting for this persistence, we characterized plasmids carrying sul2, the most prevalent determinant of sulfonamide resistance. Among 33 conjugative...

We have determined the nucleotide sequence of the Escherichia coli fepA gene, which codes for the outer membrane receptor for ferrienterochelin and colicins B and D. The predicted FepA polypeptide has a molecular weight of 79,908 and consists of 723 amino acids. A 22-amino acid leader or signal peptide preceded the mature protein. With respect to overall composition, hydropathy, net charge and ...