National Institute of Allergy and Infectious Diseases (NIAID)
Neonates delivered by scheduled Cesarean Section will be randomized to receive vaginal seeding (exposing the infant to Mother's vaginal flora) or sham. Infants will be followed for three years to examine health outcomes including microbiome development, immune development, metabolic outcomes, and any adverse events.
Cesarean section (CS) delivery is a common surgical procedure intended to increase the chances of successful delivery and to protect the health of the mother and baby. Yet this intervention is overused and has been associated with higher risk of immune and metabolic disorders in the offspring. It is hypothesized that these associations are due to CS-delivered newborns not receiving the full inoculum of maternal microbes at birth. While restoring labor is not possible, restoring the microbes that colonize infants during birth through exposure to vaginal flora, is feasible, and has been shown i…
Inclusion Criteria for Mother: * Scheduled for cesarean delivery at ≥ 37 weeks * Pregnant with single fetus, in good general health, age 18 years or older * Negative maternal testing for infections transmitted through vaginal and/or other body fluids performed as standard of care tests in early pregnancy * Negative testing for Group B strep at 35-37 weeks gestation * Vaginal pH ≤ 4.5 indicative of Lactobacillus-dominated vaginal microbiota * No maternal or fetal complications that may inhibit the ability to perform microbiome restoration per protocol * English or Spanish speaking * Negative m…
A gauze containing the Mother's vaginal flora will be swabbed over the face and body of the neonate shortly after cesarean delivery.
A gauze carrying sterile saline will be swabbed over the face and body of the neonate shortly after cesarean delivery.
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