New research explains exactly why few pregnant women seem to pass COVID-19 to their newborns after birth, and it’s all about the placenta.
have shown that both the Pfizer-BioNTech and Moderna vaccines produce immune responses in pregnant and lactating people, also helping to bolster immunity in their infants after birth.
Using placenta tissue from two groups — one group with normal pregnancies and no confirmed COVID-19 diagnoses and the other with at least one positive COVID diagnosis during the second and/or third trimester — researchers used a microscope to evaluate the presence of ACE-2, which seems to account for why COVID transmission in utero remains low, even if the pregnant mother faces a serious battle with the disease.
These findings might help doctors and health experts better understand how COVID-19 enters cells, particularly since the placenta works like the lungs in utero, transporting oxygen and nutrition to the fetus while waste products, like carbon dioxide, are transported back to the mother, according to the
. Controlling these enzymes might help prevent COVID infections — the ultimate end goal for all of us in this never-ending saga.
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