Early life
4 exposures, from 2 studies that report results microbe by microbe.
Early life Caesarean birth Babies born by caesarean section, compared with babies born vaginally. No field note yet· 2 studies Early life Vaginal birth Babies born vaginally, compared with babies born by caesarean section. No field note yet· 2 studies Early life Breast milk Babies fed breast milk, wholly or partly, compared with babies who aren't. No field note yet· 1 study Early life Formula Babies not fed breast milk, compared with babies who are. No field note yet· 2 studies