According to New Scientist, “the explanation might be that babies born by Caesarean do not get a chance to swallow beneficial bacteria during birth; colonisation of the gut plays a key role in the development of the immune system. ”
فدخول البكتيريا الى الجهاز الهضمي وتكاثرها فيه يلعبان دورا مهما في تطوير الجهاز المناعي » .‏