Table 1 Seropositivity rates of a single dose of the ChadOx1 between 28 and 32 days in HCWs who were seronegative at baseline.
From: Immune responses to a single dose of the AZD1222/Covishield vaccine in health care workers
Age group | Seropositive | Seronegative | Antibody index (total antibodies) Median (IQR) |
|---|---|---|---|
20–29 (n = 100, males = 43) | 95 (95%) | 5 (5%) | 7.5 (4.3–10.7) |
30–39 (n = 182, males = 87) | 164 (90.1%) | 18 (9.9%) | 6.1 (3.3–10.9) |
40–49 (n = 160, males = 62) | 159 (98.7%) | 5 (3.1%) | 8.8 (4.6–12.1) |
50–59 (n = 149, males = 58) | 139 (93.2%) | 8 (5.4%) | 7.4 (3.3–14.7) |
>60 n = 38, males = 11) | 31 (81.6%) | 7 (18.4%) | 8.1 (2.3–12.1) |
