Abstract
The COVID-19 pandemic is over, but in light of the potential for new mutations, an in-depth understanding of the mechanisms of this pathology development is necessary. Most unpredictably, this viral disease occurred in pregnant women. Therefore, in order to identify potential markers of the new viral disease in pregnant women, we analyzed changes in the causes of stillbirths during the first wave of COVID-19 (during which there were no previously ill and vaccinated people) in pregnant women without detected pathology (including COVID-19). The analysis showed that the number of cases of chronic fetoplacental insufficiency significantly increased by 33% in 2020 compared to 2019, and the number of placentas significantly decreased by 2.2 times. A significant increase in the number of stillbirths as a result of chronic fetoplacental insufficiency and a decrease in cases of placentitis is a marker indicating asymptomatic infection of pregnant women with the new viral infection.
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