Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF) score algorithm for identification of Gordonia species

Gordonia species differentiation is a tedious task. Herein, Gordonia identification was performed according to the standard Bruker score system and a recently proposed score for Gram positive rods identification (≥ 1.5 genus level and ≥ 1.7 species level). New scores significantly improved the identification at genus and species level.