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MG Dominguez-Bello, KM De Jesus-Laboy, N Shen, LM Cox, A Amir, A Gonzalez, NA Bokulich, SJ Song, M Hoashi, JI Rivera-Vinas, K Mendez, R Knight and JC Clemente
Abstract
Exposure of newborns to the maternal vaginal microbiota is interrupted with cesarean birthing. Babies delivered by cesarean section (C-section) acquire a microbiota that differs from that of vaginally delivered infants, and C-section delivery has been associated with increased risk for immune and metabolic disorders. Here we conducted a pilot study in which infants delivered by C-section were exposed to maternal vaginal fluids at birth. Similarly to vaginally delivered babies, the gut, oral and skin bacterial communities of these newborns during the first 30 d of life was enriched in vaginal bacteria-which were underrepresented in unexposed C-section-delivered infants-and the microbiome similarity to those of vaginally delivered infants was greater in oral and skin samples than in anal samples. Although the long-term health consequences of restoring the microbiota of C-section-delivered infants remain unclear, our results demonstrate that vaginal microbes can be partially restored at birth in C-section-delivered babies.
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Concepts
Breastfeeding, Archaea, Metabolism, Milk, Infant, Caesarean section, Bacteria, Childbirth
MeSH headings
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