Extended Data Fig. 1: Case timelines for the patient samples.

Timeline of SARS-CoV-2 infection for each COVID-19 patient participating in this study. The timelines show the relationship between infection period, hospital admission due to SAR-CoV-2 infection, hospital admission for delivery and postpartum period. Discharge, discharge from hospital; COVID-19, Coronavirus disease 2019; Ab, antibody; IgG, immunoglobulin G; Ag, Antigen; DTS, deep throat saliva; NPS, nasopharyngeal swab; NPA, nasopharyngeal aspiration; TS, throat swab; CS, Caesarean section; EmCS, emergency Caesarean section; RDS, respiratory distress syndrome; Ct, cycle threshold; NSD, normal spontaneous delivery; TTN, transient tachypnea of the newborn; ICU, intensive care unit; NICU, neonatal intensive care unit; +ve, positive finding; −ve, negative finding; PP, postpartum; and GA, gestational age.