The genotypic and phenotypic characteristics contributing to high virulence and antibiotics resistance in Escherichia coli O25-B2-ST131 in comparison to non- O25-B2-ST131.

Background: Escherichia coli serogroup O25b-sequence type 131 (E. coli O25-B2-ST131) is considered as multidrug-resistant and hypervirulent organism. There is lack of data about involvement of this pathogen in the children's infection.

Genetic Diversity of Isolates from Patients with Gastric Diseases in Isfahan.

Background: (), a spiral-shaped bacterium colonizing the human stomach, is generally acquired in childhood. This pathogen is highly diverse and can be used as genetic markers for predict the history of human migrations. This study aimed to determine the genetic diversity of isolates from patients with dyspepsia by the multi-locus sequence typing (MLST) and update data on the prevalence of among Iranian dyspeptic patients.

Environmental Surface Circulation of SARS-CoV-2 RNA in Asadabad Hospital Wards.

Background: Since early 2020, Coronavirus 2019 (COVID-19) has posed a public health risk due to serious acute respiratory syndrome. The aim of our study was to determine surface circulation of SARS-CoV-2 RNA in Asadabad Hospital wards.

Methods: Fifty swab samples were obtained from the hospital wards.

Detection of efflux pump genes in multiresistant Acinetobacter baumannii ST2 in Iran.

Acinetobacter baumannii, as a nosocomial pathogen has become a worldwide concern in recent years. In the current study, the resistance to tetracyclines and colistin were assessed in the isolates from different provinces of Iran.During the timeline of this study, a number of 270 isolates of A.

Molecular Assessment of Resistance to Clarithromycin in Strains Isolated from Patients with Dyspepsia by Fluorescent In Situ Hybridization in the Center of Iran.

Background And Aims: is a common infectious bacterium mostly found in gastroduodenal diseases. The increased prevalence of clarithromycin-resistant strains is a major challenge in the successful treatment of infections caused by this organism. The present study is aimed at detecting the clarithromycin resistance pattern of strains isolated from gastric biopsies and evaluating point mutations of the 23S rRNA gene.