FIG 5.

Metagenomic abundance of bifidobacterial AR genes. (a) Average abundance of bifidobacterial reads retrieved in the metagenome samples of infants (healthy and preterm), children treated with antibiotics, and adults. (b) Abundance of different classes of bifidobacterial AR genes with respect to the total BGS identified in the samples. (c) Average abundance of bifidobacterial AR reads with respect to the total BGS retrieved in the metagenomes, where each number corresponds to the days following birth of healthy infants (H) or preterm infants (P).