antimicrobial resistance | CMAC

antimicrobial resistance

Simulation of bacterial resistance for different antibiotic consumption strategies based on the Escherichia coli resistance to cephalosporins

Objective. Objectives. To research the qualitative relationships between the level of antimicrobial resistance and the level of consumption of different antimicrobial agents, and to further apply this knowledge to minimize the level of resistance. Materials and Methods. An extensive simulation was performed based on the previously implemented model describing the relationship between a resistance and levels of antibiotic consumption. It makes possible to estimate the resistance growth rates in different antibiotic consumption strategies.

Changes in antimicrobial resistance in clinical pediatric isolates of Haemophilus influenzae, Streptococcus pneumoniae, and Moraxella catarrhalis in Middle Ural area

Objective. To reveal the prevalence of antimicrobial resistance of H. influenzae, S. pneumoniae, and M. catarrhalis clinical pediatric isolates in Yekaterinburg and Sverdlovsk region during 2013-2015. Materials and Methods. In total 231 H. influenzae, 289 S. pneumoniae, and 266 M. catarrhalis isolates were included in the study. Antimicrobial susceptibility testing was performed partially by disc-diffusion method and partially by automated method, depending on the local practice; β-lacamase production was detected by the nitrocefin disc test.

Antimicrobial resistance of Neisseria gonorrhoeae in the Russian Federation: regional differences

Objective. To assess regional differences in antimicrobial susceptibility of N. gonorrhoeae in the Russian Federation. Materials and Methods. A total of 365 N. gonorrhoeae strains were isolated over the period of 2015-2016 in Arkhangelsk, Astrakhan, Bryansk, Kaluga, Novosibirsk, Omsk, Ryazan, Tomsk regions, Republic of Tatarstan and Chuvashiya Republic. Antimicrobial susceptibility testing was performed by agar dilution method and assessed according to MUK 4.2.1890-04 criteria using WHONET software (v5.4). Molecular typing was performed according to the NG-MAST protocol.

Antimicrobial resistance and clonal evolution of Streptococcus pneumoniae serotype 19A in Russia during 2002-2013

After the introduction of the conjugated 7-valent pneumococcal vaccine (PCV7) the incidence of infections, caused by non-vaccine serotypes of S. pneumoniae, especially by 19А serotype, significantly increased. But in few countries similar phenomenon …

Antimicrobial resistance of nosocomial Staphylococcus aureus isolates in Russia: results of multicenter epidemiological study «MARATHON» 2013-2014

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. …

Antimicrobial resistance of nosocomial Enterobacteriaceae isolates in Russia: results of multicenter epidemiological study «MARATHON» 2013-2014

Species of the family Enterobacteriaceae represent the most prevalent group of nosocomial pathogens. In this paper, we report the data on antimicrobial susceptibility of 1670 isolates of Enterobacteriaceae collected in 35 hospitals of 22 cities of …

Antimicrobial resistance of nosocomial Acinetobacter spp. isolates in Russia: results of multicenter epidemiological study «MARATHON» 2013-2014

Acinetobacter baumannii and related species of the A. baumannii complex are the common and one of the most difficult-to-treat nosocomial pathogens. In this paper, we report the data on antimicrobial susceptibility of 568 isolates of Acinetobacter …

Antimicrobial resistance of nosocomial Pseudomonas aeruginosa isolates in Russia: results of multicenter epidemiological study «MARATHON» 2013-2014

Pseudomonas aeruginosa is the most abundant bacterial species causing nosocomial infections in Russia. In this paper, we report the data on antimicrobial susceptibility of 743 isolates of P. aeruginosa collected in 63 hospitals of 22 cities of Russia …

Surveillance of antimicrobials use in neonatal hospitals with alternative DDD methods

One of the most common problems in neonatal hospitals is the choice of metrics of drugs usage in neonatology, especially use of antibiotics. This study represents our experience in quantifying antibiotic use in a Level-III neonatal intensive care …

The role of type III secretion system in the development of nosocomial infections, caused by multiresistant Pseudomonas aeruginosa strains

Type III Secretion System (TTSS) is a key pathogenicity factor of Pseudomonas aeruginosa. The suppression of the activity of TTSS would potentially allow block the infection independently on the presence of antimicrobial resistance. To study the role …