Umbilical cord blood analysis
Seventy-eight umbilical cord bloods, from mother who participated in this study, were assessed for the presence of SARS-CoV-2 antibodies. Of these, five mothers (3 in the symptomatic cohort and 2 in the asymptomatic cohort) delivered during this study period. All five umbilical cord bloods demonstrated IgG antibodies to SARS-CoV-2 (Table 2). The median antibody index was 4.88 (Roche) and 2.33 using the Alinity platform. Predictably, all of the cord bloods were negative for the presence of IgM antibodies