The infant gut microbiota has a high abundance of antibiotic resistance genes (ARGs) even in the absence of antibiotic exposure. Here, Pärnänen et al. analyse breast milk as well as infant and maternal gut microbiomes, and show that some of the infant gut ARGs are transferred from the mothers.
- Katariina Pärnänen
- Antti Karkman
- Marko Virta
