conclusions thirty-three bacterial strains; 10 strains of e. coli, 10 strains of s. flexneri, 3 strains s. sonnei, 2 strains of s. serovar newport, and 7 strains of p. aeruginosa, were isolated and identified from nile water and ground water in sohag governorate. the prevalence of enteric bacteria in water sources in studying area was considerable. no clear or distinct correlation could be conc...

background: salmonellosis is one of the most importantzoonotic diseases throughout the world. objectives: thepurpose of this study was to characterize a large collection ofsalmonella isolates from different poultry sources in iran.methods: a total of 123 salmonella isolates from differentpoultry sources were subjected to drug susceptibility test,hemolysin production, motility test, and plasmid ...

pseudomonas aeruginosa is a leading cause of bum infections, and antibiotic- resistant strains of this bacterium are emerging due to extensive application of antibiotics in the bum unit of hospitals. in this study 50 strains of p. aeruginosa were isolated from bum patients infected with this micro-organism in the bum unit of a general hospital in kerman, iran over one year [may 1999-aprii2000]....

Toxoplasmosis is a worldwide infection which is commonly asymptomatic but can cause serious medical problems in immunocompromised individuals and fetus. The infection also causes considerable economic loss because of abortion in livestock, mostly in sheep and goats. DNA vaccination may be a powerful approach against intracellular parasites such as Toxoplasma gondii. The goal of this study was t...

background: tuberculosis (tb) remains as a major cause of death around the world. construction of a new vaccine against tuberculosis is an effective way to control it. several vaccines against this disease have been developed. the aim of the present study was to cloning of tb10.4 gene in pcdna3.1+ plasmid and evaluation of its expression in eukaryotic cells. methods: firstly, tb10.4 fragment wa...

Biofilms as a form of adaptation are beneficial for bacterial survival and may be hot spots horizontal gene transfer, including conjugation. The aim this research was to characterize the biofilm biomass, viable cell ratios conjugative transfer pOX38 plasmid, an F-plasmid derivative, from Escherichia coli N4i strain (donor) into uropathogenic E. DL82 (recipient) within dual-species biofilms with...

Abstract Background The discovery of the superbug mcr-1 -positive Escherichia coli (MCRPEC) has drew greet attention. Swine-origin multi-drug resistant MCRPEC been a potential threat to public health and safety. However, there were few detailed studies have reported on swine in Guangxi, South China. Results In this study, thirty-three strains detected from 142 E. 116 samples Guangxi 2018. Which...

Plasmid pPL1010 is a 7.0-kilobase derivative of plasmid pUB110 that harbors the cohesive end site of the bacteriophage SP02 genome. Plasmid pPL1017 is a 6.8-kilobase derivative of plasmid pC194 that contains the immunity region of bacteriophage phi 105 and the cohesive end site of bacteriophage SP02. These plasmids are transducible by bacteriophage SP02 at a frequency of 10(-2) transductants pe...