TABLE 1.

Number of antimicrobial resistance genes (ARGs) per class of antibiotics and per sample (n = 13).

ARGs were identified from the shotgun metagenomics sequencing (SMS) based on sequence queries against the NCBI “Bacterial Antimicrobial Resistance Reference Gene Database” (BioProject PRJNA313047). Gene abundance was calculated as a mean base depth per 5 million reads (BD5M). In brackets is the total abundance (i.e., the sum of BD5M of all the genes within a group), highlighted in gray when total BD5M ≥ 30 (arbitrary threshold).

ST5-1mo, infant 1 month old; ST5-18mo, infant 18 months old; ST4-3mo, infant 3 months old; HS, adult human sample.