SUPPORTING INFORMATION
Appendix S1: Method description regarding RT-PCR analysis of swabs for SARS-CoV-2
Figure S1 : Placental pathology, participant 5. (A) Transected placenta, cut surface with patchy white fibrin deposit. (B) Acute and chronic intervillositis with necrosis of the trophoblast layer (black arrow) accompanied by fibrin deposits (white arrow). H&E.
Figure S2 : Placental pathology, participant 6. (A) Transected placenta, cut surface with multiple white areas of confluent fibrin deposits (white arrows). (B) Acute and chronic intervillositis (black arrow) accompanied by abundant fibrin deposits (white arrow). H&E.
Figure S3: Correlation between maternal and umbilical cord blood test result (S/C) for total antibodies. Mothers non-reactive for antibodies are excluded. Mother-infant pairs, where the umbilical cord blood sample was missing, are excluded.
Figure S4: Test result (S/C) for total antibodies in maternal and umbilical cord blood and the number of days between diagnosis and delivery. Mothers non-reactive for antibodies are excluded. Mother-infant pairs, where the umbilical cord blood sample was missing, are excluded.
Table S1: Samples performed at delivery on clinical indications