Brucellosis is endemic in most parts of Egypt, where it is caused mainly by Brucella melitensis biovar 3, and affects cattle and small ruminants in spite of ongoing efforts devoted to its control. Knowledge of the predominant Brucella species/strains circulating in a region is a prerequisite of a brucellosis control strategy. For this reason a study aiming at the evaluation of the phenotypic an...

Antibiotic sensitivities for Linezolid of 20 strains that reported as Brucella melitensis in blood cultures between 2014 and 2016 were evaluated by disc diffusion and E-test methods. According to the disc diffusion method results, 20 Brucella melitensis strains had ≥ 25 mm of antibiotic sensitivity zones. Etest measurements revealed that MIC values were between 1.5 and 6 μg. Linezolid can be an...

The permeability of the outer membrane (OM) to hydrophobic probes and its susceptibility to bactericidal cationic peptides were investigated for natural rough Brucella ovis and for mutant rough Brucella abortus strains. The OM of B. ovis displayed an abrupt and faster kinetic profile than rough B. abortus during the uptake of the hydrophobic probe N-phenyl-naphthylamine. B. ovis was more sensit...

101 isolates of Brucella spp. including the reference (n=7) and the Iranian field strains belonging to last years 1961-2003 (n=94) were biotyped and classified into 9 biotypes. Random amplified polymorphic DNA (RAPD) analysis using a ten mer-AP4 primer was generated 72 reproduciable DNA band. The typeability was 100%. The thirteen isolates were classified into five groups, each containing 2-4 b...

Introduction. To improve the epidemiological surveillance of brucellosis in Russia, a detailed analysis incidence and characteristics Brucella melitensis strains circulating territories country where there is persistent epizootic problem with required.Purpose study. study current trends epidemic process perform molecular isolates from Southern North Caucasian Federal Districts long lasting unfa...

Canine brucellosis is a zoonotic disease caused by Brucella canis. The establishment of intracellular replicative niches of B. canis is mediated by proteins secreted by the type IV secretion system, which is encoded by the virB operon. The characterization of such genes has been conducted in other species of the genus, but not in B. canis. We report the design of a multiplex PCR test for the de...

Brucellosis is a serious problem in Sicily. Brucella melitensis was identified as the species most frequently isolated in humans in Italy. No data, however, are available about the molecular epidemiological characterization of Brucella isolates from humans. We have conducted this study to molecularly characterize clinical isolates of Brucella spp. and to evaluate their antimicrobial susceptibil...

The literature on electrophoresis of bacteria is quite voluminous and has been reviewed, among others, by Winslow, Falk and Caulfield (1923-4), Winslow and Upton (1926), Winslow and Fleeson (1925-8), Joffe and Mudd (1934-5), and Abramson (1934). Although a few workers have concerned themselves with studies of this type on Brucella species, apparently there has been no systematic investigation o...

A newly isolated smooth colony morphology phage-resistant strain 8416 isolated from a 45-year-old cattle farm cleaner with clinical features of brucellosis in China was reported. The most unusual phenotype was its resistance to two Brucella phages Tbilisi and Weybridge, but sensitive to Berkeley 2, a pattern similar to that of Brucella melitensis biovar 1. VITEK 2 biochemical identification sys...

Virulent phages have been used for many years to type Brucella isolates, but until recently knowledge about the genetic makeup of these phages remains limited. In this work the host specificity and genomic sequences of the original set (deposited in 1960) of VLA Brucella reference phages Tb, Fi, Wb, Bk2, R/C, and Iz were analyzed and compared with hitherto described brucellaphages. VLA phages t...