Study shows Placenta is a Bacteria-free zone

A team of researchers at the University of Cambridge has found evidence indicating that the human placenta is a sterile environment. In their paper published in the journal Nature, the group describes their study of the placental environment and what they found.

For many years there was a widely held consensus in the  that the womb and placenta were sterile environments. But then, back in 2014, a team of researchers found evidence of low levels of  existing in the placenta. Since that time, several other studies have appeared to confirm those findings. But now, the team at Cambridge has found that there is no biome in the placenta. They suggest that the study in 2014 was flawed—and further suggest the earlier findings were the result of studying contaminated tissue.

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