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Mom may pass bacteria to baby in utero: Study

by Jul. 5, 2018, 2:56 PM

For decades, it has been accepted that fetal development occurs in a sterile womb. Recent discoveries of bacterial DNA in baby’s first bowel movement and in the placenta after sterile C-section, however, have challenged this assumption.

Now, Jörn-Hendrik Weitkamp, MD, and colleagues have examined the presence of bacterial DNA in the intestines and placentas of fetal mice and compared it to newborn intestines and tissues from the mother. They found that the pattern of bacterial DNA in the fetal gut was strikingly different from newborn or maternal stool, but was similar to the microbiome of the placenta and maternal mouth.

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