نتایج جستجو برای: virulence genes bvfa
تعداد نتایج: 458396 فیلتر نتایج به سال:
Introduction & Objective: Diarrhea is the most common cause of morbidity and mortality in all age groups, especially children, the elderly and immunocompromised patients. Various studies have been reported regarding the relationship between the children acute diarrhea and Aeromonashydrophila and Yersinia enterocolitica. This study aimed to investigate the prevalence of the bacteria and their se...
Objective(s): Pseudomonas aeruginosa is one of the most important nosocomial pathogens causing a high rate of mortality among hospitalized patients. Herein, we report the prevalence of antibiotic resistance genes, class 1 integrons, major virulence genes and clonal relationship among multidrug- resistant (MDR) P. aeruginosa, isolated from four referral hospitals in the...
Introduction: Escherichia coli O157:H7 is one of the major foodborne illness and sporadic case of human disease, hemorrhagic colitis and hemolytic-uremic syndrome. The purpose of this study is to survey the prevalence of Escherichia coli O157:H7 virulence genes from ground meat in Shiraz. Methods: In this research 504 samples of ground meat were collected from three main factories of meat prod...
Background and Aims: Helicobacter pylori is the main cause of various gastroduodenal diseases. It is estimated that app roximately, more than half of the adult population in developed countries and 90% of people in developing countries infected with H. pylori. H. pylori infection may be related to Genetic of virulence factors and environmental factors. The aim of this study was to assess of fre...
Background: The survival of pathogens in biofilms poses a threat to food safety. The aim of this study was to determine prevalence, antimicrobial resistance, and molecular characterization of Escherichia coli strains. Methods: Swab samples (n=144) were collected from biofilm formed on food contact surfaces in seafood pre-processing plant in India. E. coli was isolated and identified using uid ...
Various virulence-associated genes or pathogenicity island are responsible for determining the pathogenicity of Escherichia coli strains. However, the correlation of the number and combination patterns of virulence-associated genes in Escherichia coli strains with their pathogenicity remains largely unknown. In this work, 581 chicken Escherichia coli strains were isolated from 1045 liver sample...
Abstract Introduction. Extended-spectrum β-lactamase (ESβL)-producing Klebsiella pneumoniae is currently one of the most common causes nosocomial infections worldwide. The study aimed to characterize antibiotic resistance profile, prevalence selected genes encoding ESβLs, virulence, and genetic relationship in 139 K. isolates identified John Paul II Specialist Hospital Southern Poland, collecte...
virulent and resistant strains pseudomonas aeruginosa ( p. aeruginosa) is one of the most important cause of utis in pediatrics. the present study was carried to investigate the frequency of virulence factors in the multi-drug resistant strains of p. aeruginosa isolated from pediatrics hospitalized due to the utis. one - hundred and forty three urine samples were collected from pediatric patie...
ABSTRACT Acinetobacter baumannii possesses a single divergent luxR / luxRI -type quorum-sensing (QS) locus named abaR abaI . This also contains third gene located between and , which we term abaM that codes for an uncharacterized member of the RsaM protein family known to regulate N -acylhomoserine lactone (AHL)-dependent QS in other beta- gammaproteobacteria. Here, show disruption via T26 inse...
in this study, 72 enterococcus faecalis isolates originating from humans (n=39), dogs (n=26) and cats (n=7) were investigated for some virulence factors, some virulence genes, antibiotic resistance phenotypes, randomly amplified polymorphic dna-polymerase chain reaction (rapd-pcr) patterns and biofilm production. of the isolates, 31 (43.1%) were positive for gelatinase, 11 (15.3%) for aggregati...
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