ArticleJournal of clinical microbiology2006
Molecular characterization of non-penicillin-susceptible Streptococcus pneumoniae in Norway.
Article in Journal of clinical microbiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Determination of vancomycin minimum inhibitory concentration for ceftazidime resistant Streptococcus pneumoniae in Iran.Annals of clinical microbiology and antimicrobials · 2014Article
- Expansion and evolution of the Streptococcus pneumoniae Spain9V-ST156 clonal complex in Poland.Antimicrobial agents and chemotherapy · 2010Article
- Temporal trends of antimicrobial resistance and clonality of invasive Streptococcus pneumoniae isolates in Finland, 2002 to 2006.Antimicrobial agents and chemotherapy · 2009Article
- Use of the Agilent 2100 bioanalyzer for rapid and reproducible molecular typing of Streptococcus pneumoniae.Journal of clinical microbiology · 2007Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A total of 125 non-penicillin-susceptible Streptococcus pneumoniae isolates were received at the Norwegian Institute of Public Health in the period from 1995 to 2001. The strains were tested for antimicrobial susceptibility, serotyped, and genotyped by multilocus sequence typing (MLST); and their penicillin-binding proteins (PBPs) were typed by restriction fragment length polymorphism analysis of their pbp genes. Of the 125 strains, 48 (38%) were fully resistant to penicillin and 77 (62%) were intermediately resistant to penicillin. Most of the strains resistant to penicillin were also resistant to one or several additional antibiotics. The most frequent serotypes among the non-penicillin-susceptible strains were 14, 9V, 19F, 23F, and 6B. MLST analysis showed a high degree of genetic diversity among the 119 strains tested, with a total of 74 different sequence types. Six of the 26 internationally known resistant clones were present; the Spain(9V)-3 clone was the most frequent, with 19 isolates. A total of 74 (62%) of the isolates were related to 1 of the 26 international clones. Restriction enzyme analyses of the pbp1a, pbp2b, and pbp2x genes revealed 12, 12, and 19 different patterns, respectively; and a total of 43 different PBPs types were demonstrated. Our data indicate that the non-penicillin-susceptible strains in Norway are highly diverse genetically and that limited spread of the internationally known resistant strains occurred in the country in the period examined.
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