The Gut Microbiome – Our Second Genome
Until recently, it was thought that the uterus and placenta were germ-free to create a sterile environment keeping the developing baby safe from infections. But recent research has demonstrated that fetuses as young as one week have a complex collection of microbes living in their guts – and the placental microbes most closely resemble microbes living in the mothers’ mouths.
To learn more about this new finding, see Not Sterile, After All: The Placenta’s Microbiome. (Collins, 2014)