For infants:
- Mode of delivery
Babies born by C-section transfer less bacteria from their mothers, and they got less diversity of their gut microbiome.
- Feeding patterns
Breast feeding stimulates the growth of Bifidobacterium and Bacteroides.
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Prenatal antibiotic exposure
Prenatal antibiotic exposure lowers the colonization and diversity of gut microbiome of babies.
Reference:
Yang, I., Corwin, E., Brennan, P., Jordan, S., Murphy, J. and Dunlop, A. (2016). The Infant Microbiome. Nursing Research, 65(1), pp.76-88.