نتایج جستجو برای: antibiotic resistant bacteria
تعداد نتایج: 411877 فیلتر نتایج به سال:
Bacteria with intrinsic resistance to antibiotics are found in nature. Such organisms may acquire additional resistance genes from bacteria introduced into soil or water, and the resident bacteria may be the reservoir or source of widespread resistant organisms found in many environments. We isolated antibiotic-resistant bacteria in freshwater samples from 16 U.S. rivers at 22 sites and measure...
Background and purpose: Wild rats are considered as an important spreading factor of contamination in urban areas. During recent years, the wild rats were extensively distributed in Tehran. Therefore, it is important to investigate the antibiotic resistance of enteric bacteria isolated from rats, because of the possibility of antibiotic resistance transmission to human. The aim of this study ...
background and objective: diabetes mellitus is one of the main problems in health systems in the world. diabetic foot infections (dfi) is one of the main complications and the most cause of non-traumatic lower limb amputation .this study aimed to determine the prevalence of bacteria involved in dfi and their antibiotic resistance in patients with dfi diagnosis. patients and methods: this desc...
Some transformable bacteria have acquired target-mediated antibiotic resistance by horizontal genetic exchange of fragments of chromosomal genes. The resistant strains express variants of the antibiotic target that are metabolically active but exhibit a lowered affinity for the antibiotic. The alleles encoding these resistant proteins are mosaics comprising DNA derived from the host and other b...
Introduction: Carbapenems are one of the latest drugs for treatment of threatening infections of Pseudomonas aeruginosa. Resistance to these antibiotics is sometimes caused by carbapnmase class B, such as VIM metallo-beta-lactamase (MBL) that is growing in the communities. The aim of this study was to detect the of metallo-beta-lactamase blaVIM-1 gene among clinical isolates of Pseudomonas aeru...
Background and Objective: Acinetobacter baumannii is an important human pathogen that has been a focus of attention in recent years. These bacteria are a leading cause of therapeutic resistant nosocomial infections especially in burned or hospitalized patients in intensive care Units. The aim of this study was to isolate the Acinetobacter baumannii species from the wounds of burned patients and...
Background: Milk is a reservoir for several groups of microorganisms, which may pose health risks. The aim of this work was to assess the antibiotic resistance and biofilm production in catalase-positive Gram-positive cocci isolated from Brazilian pasteurized milk. Methods: The bacteria were isolated using Baird-Parker agar and identified by Matrix-Assisted Laser Desorption/Ionization-Time-Of-...
Antibiotics are important to successful livestock production. Unfortunately use of antibiotics applies selection pressure that results in antibiotic resistance in exposed populations of bacteria and can also result in antibiotic residues in meat and milk from treated animals. Of major current concern is the risk of transfer of antibiotic resistant bacteria and genes encoding resistance from peo...
A major issue in anti-bacterial therapy is the development of resistance in the otherwise sensitive strains of bacteria. Exposure of bacteria to low doses of an antibiotic naturally selects for the survival of resistant organisms. The spread of these resistant strains of pathogenic bacteria from environment poses problems to treat such infections. In order to understand the ecology and evolutio...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید