Does exposing cesarean-delivered newborns to the vaginal microbiome restore microbiome development? More clinical trials are needed before conclusions can be made

Restoring maternal microbes immediately after birth, in a practice dubbed ‘vaginal seeding’, has been suggested as a means of improving microbiome development in cesarean-born neonates. Two new studies come to contradictory findings, however, highlighting the need for more clinical trials before the practice is generalized.