Abstract:
The COVID-19 pandemic, which was announced by WHO in March 2020,
has made major adjustments to the life of modern society. Pregnancy during a period of
increased danger, if there is a possibility in the risk group. In this case, the likelihood of a more
severe course of infection with the advent of the population is increased due to the occurrence
of diseases of the immune system and concomitant diseases. The placenta is an endocrine organ
that produces a number of protein and steroid hormones in the blood, such as human chorionic
gonadotropin, placental lactogenic hormone, progesterone, and estrogens. Metabolic changes
during pregnancy increase the production of placental hormones in the second half of
pregnancy. The gut microbiota plays an important role in maintaining the basic functions in
the human body: metabolic, protective and trophic. It is a controlling factor in the processes
of digestion.