![](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
9 min
![](/assets/artwork/1x1-42817eea7ade52607a760cbee00d1495.gif)
During Pregnancy, a Fake 'Infection' Protects the Fetus Quanta Science Podcast
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- Physics
The placenta has a unique trick for keeping immune defenses on standby, even when no viral infections threaten a pregnancy.
The placenta has a unique trick for keeping immune defenses on standby, even when no viral infections threaten a pregnancy.
9 min