Individual taxa plots and bacterial taxa discriminant in infant feces by maternal H. pylori status. (A) Bacterial taxa plots in intestinal microbiota from each infant by maternal H. pylori status according to mode of delivery. Each taxonomy is indicated by a different color at the genus level. (B) Histogram of overrepresented taxa in infant faces by maternal H. pylori status (LEfSe analysis between two groups, LDA > 3.0; approx. p < 0.001). (C) Random Forest prediction of maternal H. pylori status based on her child’s fecal microbiota structure. The confusion matrix of infant fecal samples is based on a Random Forest classifier (loop method) over 100 rarefactions of the full OTU tables.