Impact of Postnatal Antibiotics and Parenteral Nutrition on the Gut Microbiota in Preterm Infants During Early Life

Background The early‐life gut microbiota, which is critically important for the long‐term health of infants, is normally sensitive to perturbations, especially in preterm infants. However, how the gut microbiota develops and what key factors affect the preterm gut microbiota remain largely unknown. We hypothesized that preterm microbial dysbiosis exists from the beginning after birth, and microbial alteration is associated with parenteral...