Staphylococcus aureus

Objective. To study effects of bacteriophages on biofilm formation and formed biofilm by S. aureus isolated from patients with orthopedic infection. Materials and Methods. A total of 50 clinical strains of S. aureus were tested. Species identification was performed by MALDI-TOF MS, antibiotic susceptibility – in accordance with the EUCAST v21. Isolates susceptibility to bacteriophages «Sextafag» (Microgen, Russia) was determined by MPA medium. The antibacterial activity of phages against S.

The review presents the current view on the different resistance mechanisms of Staphylococcus aureus to beta-lactams, which are ones of the main antibiotics of choice for the treatment of staphylococcal infections. Currently, there are several …

Objective. To evaluate frequency and intensity of cefazolin inoculum effect among methicillin-susceptible staphylococci isolated from patients with skin infections. Materials and Methods. A total of 80 methicillin susceptible isolates of Staphylococcus aureus were identified by cefoxitin disk-diffusion test and negative results of real-time PCR for mecA gene. Inoculum effect was measured by broth microdilution test with two inocula with concentrations of 5 × 105 CFU/mL and 5 × 107 CFU/mL.

Staphylococcal infections are widespread among outpatients and hospitalized patients. Despite the apparent diversity of the “menu” of anti-staphylococcal drugs, treatment results in several patients are not good as expected. This is due to the …

The study included 418 of the 841 clinical isolates of S. aureus, which were regarded as nosocomial. These 418 clinical nosocomial S. aureus strains were isolated in 2013-2014 from patients hospitalized in 25 hospitals in 19 Russian cities. …

This paper presents the results of a microbiological study of clinical specimens obtained from 64 patients with chronic post-traumatic osteomyelitis of long bones during the 2011–2013. A total of 136 clinical strains were isolated and identified to a …

In total 284 clinical nosocomial S. aureus strains isolated in 2011–2012 from patients hospitalized in 25 hospitals in 18 Russian cities were included in the study. Susceptibility to 19 antimicrobials was assessed by serial dilution method in …

Staphylococcus aureus is known as the leading pathogen in hospital-acquired infections and the most common cause of skin and soft tissues. The present study aimed to test the genetic background of MSSA isolates obtained from pediatric patients and …

At the present article we evaluate a relatively new method of the evaluation of activity of antimicrobials against bacterial biofilms. This method combines the possibilities of simultaneous evaluation of bacterial survival in biofilm in the presence …

Methicillin-resistant Staphylococcus aureus (MRSA) ST239 is one of the most common nosocomial genotypes worldwide. Typical MRSA ST239 strains do not produce toxic shock syndrome toxin-1 (TSST-1), which is encoded by tst gene at staphylococcal …