Fig. 5From: Shaping the subway microbiome through probiotic-based sanitation during the COVID-19 emergency: a pre–post case–control studySurface and air microbiome composition at T0 in the enrolled trains. Characterization of the surface (floor) and air microbiomes by analyzing all the collected floor and air filter samples by 16S rRNA NGS. Percentage (%) relative abundances of phyla (left panel) and genera (right panel) are depicted. Results represent the mean relative abundance of all collected floor and air filter samplesBack to article page