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  • Title: Performance of the Vitek MS v2.0 system in distinguishing Streptococcus pneumoniae from nonpneumococcal species of the Streptococcus mitis group.
    Author: Branda JA, Markham RP, Garner CD, Rychert JA, Ferraro MJ.
    Journal: J Clin Microbiol; 2013 Sep; 51(9):3079-82. PubMed ID: 23784130.
    Abstract:
    The Vitek MS v2.0 matrix-assisted laser desorption ionization-time of flight mass spectrometry system accurately distinguished Streptococcus pneumoniae from nonpneumococcal S. mitis group species. Only 1 of 116 nonpneumococcal isolates (<1%) was misidentified as S. pneumoniae. None of 95 pneumococcal isolates was misidentified. This method provides a rapid, simple means of discriminating among these challenging organisms.
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