Individualized mosaics of microbial strains transfer from the maternal to the infant gut: A microbiome 'fingerprint' method allows tracking of mothers' microbial strains inherited by infants

Researchers have used a microbiome 'fingerprint' method to report that an individualized mosaic of microbial strains is transmitted to the infant gut microbiome from a mother giving birth through vaginal delivery. They detailed this transmission by analyzing existing metagenomic databases of fecal samples from mother-infant pairs, as well as analyzing mouse dam and pup transmission in a germ-free, or gnotobiotic, mouse model, where the dams were inoculated..