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Research Article: Performance of Two Matrix-Assisted Laser Desorption Ionization–Time-of-Flight Mass Spectrometry (MALDI-TOF MS) Systems for Identification of the Viridans Group Streptococci

Date Published: 2023-05-10

Abstract:
The viridans group streptococci (VGS) are a heterogeneous group of different species of streptococci, whose name is used to refer to the greenish coloring of the medium around the colonies due to partial destruction of erythrocytes. In general, the VGS are divided into five groups including the Streptococcus anginosus group, the Streptococcus mitis group, the Streptococcus mutans group, the Streptococcus salivarius group, and the Streptococcus bovis group. The VGS isolates are considered as the normal flora of the human respiratory, gastrointestinal tract, and urogenital tracts, but some of them are usually associated with clinical infectious diseases, including bacteremia and infective endocarditis.

Introduction:
The viridans group streptococci (VGS) are a heterogeneous group of different species of streptococci, whose name is used to refer to the greenish coloring of the medium around the colonies due to partial destruction of erythrocytes. In general, the VGS are divided into five groups including the Streptococcus anginosus group, the Streptococcus mitis group, the Streptococcus mutans group, the Streptococcus salivarius group, and the Streptococcus bovis group. The VGS isolates are considered as the normal flora of the…

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