Shared and distinct oligotypes in sewage and Brazilian human fecal samples. The Venn diagram shows the number of shared oligotypes between the three sewage samples. The bar plot shows the abundance of each oligotype found in sewage samples. The color of each bar corresponds to the regions of the same color in the Venn diagram. The lower panel is a heat map that uses presence (green) and absence (red) to show the distribution of each oligotype among 10 samples collected from Brazilian humans. Colors listed in the key below the heat map follow the colors given to corresponding bars and Venn diagram.