Files in this Data Supplement:

• Supplemental file 1 - Table S1 (List of the 106 L. monocytogenes strains used to establish the spectral reference data set)
  Excel document, 32K.
• Supplemental file 2 - Table S2 (List of the 166 L. monocytogenes strains used as a test set for external validation of the serovar identification by FTIR)
  Excel document, 52K.
• Supplemental file 3 - Supplemental material (Detailed description of the construction and optimization of the artificial neural network used in this study)
  Word document, 29K.