ornithobacterium rhinotracheale (ort) is a bacterium associated with respiratory disease, growth retardation, decreased egg production and mortality in chickens and turkeys. the objective of this study was isolation, identification and evaluation of antimicrobial susceptibility of ort bacterium in slaughtered broilers chicken flocks based on cultural and molecular tests in khuzestan province, s...

The antimicrobial activity of ethanol and chloroform extracts of Pentanema divaricatum Cass. was studied using the conventional disk diffusion method. The extracts' highest antimicrobial activity was observed against Aspergillus niger. Bioassay-guided fractionation of the crude extract by preparative thin layer chromatography (PTLC) showed one antimicrobial fraction which was especially effecti...

The resistance of Helicobacter pylori to antibiotics leaves great influence on treatment outcome. Routine antimicrobial susceptibility testing of H. pylori should be a simple, inexpensive and standardized method to be adopted. Agar and broth dilution techniques are difficult to perform and not practical. E-test and disk diffusion methods have the advantage of allowing the visualization of resis...

Polymyxin, Colistin, Disk diffusion, E-test, MDR, XDR Background: The widespread multidrug-resistant Gram-negative bacilli (GNB)has necessitated the evaluation of the use of older antimicrobials such as polymyxins being the last resort drugs for the treatment of life-threatening nosocomial infections. Objectives: We conducted the present study to evaluate simple disk diffusion method (the routi...

background one of the most important factors in inducing the logarithmic growth of streptococcus mutans, is a diet containing fermentable carbohydrates such as sucrose. objectives: the aim of the current research was to compare the ability of ordinary and probiotic chocolate to induce or inhibit the growth of s. mutans. materials and methods lactobacillus rhamnosus, l. plantarum and l. acidophi...

discussion our results indicated that agar screening was superior to oxacillin disk agar diffusion. a comparison between the antibiotic sensitivity patterns of the mrcns and the methicillin-susceptible coagulase-negative staphylococci (mscns) showed that the mrcns were predominantly multiple-drug resistant isolates as the simultaneous resistance rate to 4 or more antibiotics in the mrcns and ms...

BACKGROUND AND OBJECTIVE Reports on MRSA strains are increasing worldwide. The aim of this study was to find the prevalence of MRSA strains isolated from clinical specimens and to evaluate their resistance profile. Additionally we compared the phenotypic and genotypic methods for detection of methicillin resistance. MATERIALS AND METHODS In this cross-sectional study, a total of 41 isolates o...

Camellia sinensis, commonly known as green tea, has been shown to possess antimicrobial properties and to lower the risk of cardiovascular disease and periodontal diseases. This study investigates the effects of brewing green tea at varying concentrations and durations on its antimicrobial activity against common oral bacteria, such as Streptococcus mutans, Porphyromonas gingivalis, and Staphyl...