Can breastfeeding promote an antibiotic-resilient microbiome?

In this issue of Med, Dai, Petersen, and colleagues report that the antibiotic-associated risk of asthma in children may be mitigated by breastfeeding in early life. They find that breastfeeding promotes a specific microbiome composition responsible for this resilience, mainly driven by the bacterium Bifidobacterium longum subspecies infantis.