Table 2.
Seroprevalence of anti SARS-CoV-2 immunoglobulins in maternal and cord blood samples
| Maternal blooda | Cord bloodb | |||||
|---|---|---|---|---|---|---|
| Positive | Positive | |||||
| n | N | % (95CI) | n | N | % (95CI) | |
| Total Ig | 68 | 100 | 68 (57.9—77) | 55 | 85 | 64.7 (53.6 – 74.8) |
| By Isotopes | ||||||
| IgM | 60 | 66 | 90.9 (81.2–96.6) | 18 | 35 | 51.4 (34 – 68.6) |
| IgG | 53 | 66 | 80.3 (68.7 – 89.1) | 19 | 27 | 70.4 (49.8 – 86.2) |
95CI 95% Confidence Interval
aTwo maternal blood samples out of the 68 that tested total Ig positive had insufficient volume for anlysing the IgM and IgG serotypes
bTotal Ig were analyzed in 85 available cord blood samples; the IgM and IgG were analyzed in remaining 35 and 27 samples, respectively, out of the 55 with positive Ig total ¡