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September 19, 2019 02:03 am

C-Section Babies Have More Potentially Infectious Gut Bacteria

Scientists from the Wellcome Sanger Institute, UCL, the University of Birmingham and their collaborators discovered that whereas vaginally born babies got most of their gut bacteria from their mother, babies born via caesarean did not, and instead had more bacteria associated with hospital environments in their guts. Science Daily reports: The exact role of the baby's gut bacteria is unclear and it isn't known if these differences at birth will have any effect on later health. The researchers found the differences in gut bacteria between vaginally born and caesarean delivered babies largely evened out by 1 year old, but large follow-up studies are needed to determine if the early differences influence health outcomes. Experts from the Royal College of Obstetricians and Gynaecologists say that these findings should not deter women from having a caesarean birth. Published in Nature today, this largest ever study of neonatal microbiomes also revealed that the microbiome of vaginally delivered newborns did not come from the mother's vaginal bacteria, but from the mother's gut. This calls into question the controversial practice of swabbing babies born via caesarean with mother's vaginal bacteria. Understanding how the birth process impacts on the baby's microbiome will enable future research into bacterial therapies.

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