antimicrobial susceptibility

Objective. To evaluate antimicrobial resistance patterns of clinical Haemophilus influenzae isolates from different regions of Russia during 2014–2017. Materials and Methods. We included in the study 185 clinical H. influenzae isolates from 13 Russian cities. Susceptibility testing was performed by reference broth microdilution method (ISO 207761:2006). Susceptibility testing results were interpreted using EUCAST v. 10.0 breakpoints. Results. H. influenzae isolates were highly susceptible to all (96.8%-100%) β-lactams tested (amoxicillin/ clavulanate, cefixime, ceftaroline, ceftibuten, cefditoren, ertapenem) with the exception of ampicillin (15.

Objective. Streptococcus pneumoniae (pneumococcus) is the leading cause of acute otitis media (AOM) in children. Hereby, we describe antibiotic susceptibility, clonality, and serotype distribution of pneumococci isolated from the middle ear fluid (MEF) in children with AOM. Materials and Methods. MEF specimens from children ≤5 years of age with AOM were collected in 4 pediatric hospitals in Moscow in 2011–2013. Isolation and identification of pneumococcus was performed using standard microbiological procedures.

Objective. To determine bacterial pathogens causing ocular infections and their antimicrobial susceptibility patterns. Materials and Methods. This prospective microbiological study included a total of 235 isolates of aerobic microorganisms obtained from 235 patients in 10 Russian regions. Susceptibility to the following antimicrobials (ampicillin, amoxicillin, amoxicillin/clavulanate, oxacillin, penicillin, ciprofloxacin, levofloxacin, moxifloxacin, ofloxacin, norfloxacin, tobramycin, gentamicin, chloramphenicol, polymyxin B, tetracycline, and erythromycin) was determined using serial dilution method. Results. The most predominant pathogens in ocular infections were S.