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  • Title: Antimicrobial susceptibilities of amoxycillin-non-susceptible and susceptible isolates among penicillin-non-susceptible Streptococcus pneumoniae.
    Author: Pérez-Trallero E, Marimón JM, Ercibengoa M, Giménez MJ, Coronel P, Aguilar L.
    Journal: Clin Microbiol Infect; 2007 Sep; 13(9):937-40. PubMed ID: 17617182.
    Abstract:
    Antimicrobial susceptibilities of 244 amoxycillin-non-susceptible and 81 amoxycillin-susceptible pneumococcal isolates from 15 Spanish hospitals were determined and clonal relationships were investigated by pulsed-field gel electrophoresis after SmaI restriction. Amoxycillin-non-susceptible isolates exhibited higher rates of resistance to cefuroxime, cefixime, cefpodoxime and clarithromycin, but not to levofloxacin and cefotaxime. Cefditoren exhibited MIC(90) values one dilution lower than those of cefotaxime. Higher numbers of the Spain(14)-5 and Spain(6B)-2 clones, but not the Spain(9V)-3 and Spain(23F)-1 clones, were found among amoxycillin-non-susceptible isolates. Spain(14)-5 was the most problematic clone in terms of antibiotic resistance.
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