Acute gastroenteritis (AGE) is a leading cause of infectious morbidity in childhood. Clinical studies have implicated caesarean section, early birth and formula feeding in modifying normal gut microbiota development and immune system homeostasis in early life. Rates of early birth and cesarean delivery are also increasing worldwide. | Gestational age, mode of birth and breastmilk feeding all influence acute early childhood gastroenteritis: A record-linkage cohort study