Identification of bacterial isolates
The identification of all bacterial isolates was performed by mass spectrometry using the Matrix Assisted Laser Desorption/Ionization (MALDI) mass spectrometer (Bruker Daltonics, MALDI Biotyper, Fremont, CA, USA), a high-throughput proteomic technique for identification of a variety of bacterial and fungal species (Sogawa K. et. al, 2011; Ferrazzano G.F. et. al, 2017; Cicatiello A.G. et al, 2014). Through this identification procedure a reliability threshold of 1.4 was established.