Table 2.
Seropositivity rates and geometric mean titer of neutralizing antibodies against SARS-CoV2 variants by cVNT.
| Schedule | Indicators | D614G | Alpha (B.1.1.7) | Gamma (P.1) | Delta (B.1.617.2) | Seropositivity rate over 2 variants |
|---|---|---|---|---|---|---|
| 0-14 | Seropositivity n/N (%) GMT (95% CI) |
34/34 100 57.7 45.1-74.0 |
27/34 79.4 26.5 14.9-47.1 |
27/34 79.4 27.0 14.8-49.4 |
20/34 58.8 7.7 4.7-12-6 |
29/34 85.2 N/D (-) |
| 0-28 | Seropositivity n/N (%) GMT (95% CI) |
18/18 100 122.2 83.9-178.1 |
17/18 94.4 46.1 19.8-107.2 |
7/18 38.9 5.7 2.6-12.4 |
9/18 50.0 8.3 3.5-19.7 |
12/18 66.6 N/D (-) |
| Total | Seropositivity n/N (%) GMT (95% CI) |
52/52 100 74.8 59.8-93.6 |
44/52 84.6 32.1 20.1-51.1 |
34/52 65.4 15.8 9.5-26.2 |
29/52 55.8 7.9 5.2-12 |
41/52 78.8 N/D (-) |
GMT, Geometric mean titer; N/D, Not determined.