Assessment of Obstetric, Fetal and Neonatal Risks and Vertical SARS-CoV-2 Transmission During COVID-19 Pandemic

"1. Inclusion of patients with clinical data (in a eCRF) and various samples collection according to the outcome of pregnancy~2. Storage and freezing samples for subsequent analysis by RT-PCR COVID-19 (maternal saliva, cord blood, fetal stools, placenta, fetal tissue, amniotic fluid according to pregnancy outcomes) and by maternal and newborn and / or fetal serologies testing~3. Pathological study of placentas and fetal autopsies~ * Histology of positive COVID-19 placentas~ * Brain and visceral histology of positive COVID-19 fetuses autopsied~4. Analysis of patient comorbidities and comparison in the different groups~5. Final statistical analysis"