Babies born by caesarean section have different gut bacteria to those born vaginally – but the differences largely disappear after six to nine months
Source:
https://www.newscientist.com/article/2216818-c-section-babies-have-a-different-microbiome-but-not-for-long/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home