Abstract
There is inadequate screening for SARS-COV-2 during pregnancy. We aimed to determine the impact of maternal and neonatal cord blood SARS-COV-2 antibodies and placental transfer ratios in a region with a low screening plan. We performed a blind study in one of the SARS-CoV-2 epicenters in South America. 32% of pregnant women were serological positive. Importantly, there is an efficient passive immunization of the fetus to SARS-CoV-2. We report high incidence of SARS-CoV-2 infection during pregnancy, which is higher than officially reported. Therefore the need of active immunization to enhance maternal protection and fetal passive immunization.
Keywords: IgG; IgM; Placenta; Pregnancy; SARS-COV-2.
【저자키워드】 SARS-CoV-2, IgG, IgM, Placenta, Pregnancy, 【초록키워드】 SARS-CoV-2, antibody, SARS-COV-2 infection, immunization, pregnant women, placental, incidence, South America, serological, Blood, Neonatal, transfer, positive, blind, ENhance, performed, reported, determine, fetal, the SARS-CoV-2, 【제목키워드】 SARS-CoV-2, Seroprevalence, pregnant women, Immunoglobulin, Blood, Neonatal, impacted,