Bacteria in the gut influence the production of antibodies and themselves secrete metabolites. In a pregnant woman, these compounds may influence immune development of her fetus.

Carolyn A. Thomson and Kathy D. McCoy
Aug 1, 2021

https://www.the-scientist.com/features/the-role-of-mom-s-microbes-during-pregnancy-69009#.YQh3_f2m8TM.facebook