That does not imply intra-body transfer, though. It’s exactly what it says. The digestive organs and the vaginal canal are not sterile, and their pathways conve

That does not imply intra-body transfer, though. It’s exactly what it says. The digestive organs and the vaginal canal are not sterile, and their pathways converge at the bottom end. Seems pretty straightforward from the rest of the comment that, once the amniotic sac breaks it’s a bacterial slip all the way out, with a surprise at the end.