the aim of this study was to identify virulent shiga toxin-producing escherichia coli (stec) strains isolated from faecal samples of 100 clinically healthy calves. in the present study, a total of 100 escherichia coli (e. coli) isolates from clinically healthy calves belonging to 6 different farms located in khorasan razavi province, iran, were examined for presence of virulence genes character...

Staphylococcus aureus is a major causative pathogen of clinical and subclinical mastitis of dairy domestic ruminants. This agent produces a variety of extracellular toxins and virulence factors including Toxic Shock Syndrome Toxin-1 (TSST-1) which is the major cause of Toxic Shock Syndrome (TSS). In this study 58 S. aureus isolates obtained from 9 dairy herds in East and West Azerbaijan provinc...

The RiboPrinter Microbial Characterization System was compared with pulsed-field gel electrophoresis (PFGE), restriction endonuclease analysis (REA), and epidemiological data for typing 45 vancomycin-resistant Enterococcus faecium (VRE) isolates. In 21 clinically related isolates, 90 to 100% were similar by PFGE and REA, but only 57% were similar by the RiboPrinter. In another eight clinically ...

background: metronidazole is drug of choice recommended by who for treatment of trichomoniasis, however, some reports claims drug resistance in trichomonas vaginalis isolates recently. the objective of this study was to determine the minimum lethal concentration (mlc) of metronidazole in resistant and sensitive strains, as well as genetic patterns of these stains by pcr method. methods : from f...

Althoughpoultry meat is considered as the main source for human Campylobacter infections,there is limited information about non-poultry sources. The present study was aimed to investigate the prevalence and the antibiotic resistance of thermophilic Campylobacter spp. in fecal samples of the cattle and sheep in Shiraz, Iran. A total of 302fecal samples were obtained from clinic...

Hemophagocytic syndrome is a non-malignant process that is characterized clinically by fever, hepatomegaly, splenomegaly, pancytopenia in peripheral blood, and reactive histiocytes in the bone marrow. Bacterial infectious diseases like typhoid fever and brucellosis and viral infections including CMV, herpes viruses, and Epstein-Barr virus are diagnosed as the cause of this syndrome. In thi...

staphylococcus aureus is a major causative pathogen of clinical and subclinical mastitis of dairy domestic ruminants. this agent produces a variety of extracellular toxins and virulence factors including toxic shock syndrome toxin-1 (tsst-1) which is the major cause of toxic shock syndrome (tss). in this study 58 s. aureus isolates obtained from 9 dairy herds in east and west azerbaijan prov...