Table 1. Comparison of anti-HBs between infants and mothers.
| Ratio of cord/maternal anti-HBs | No. of paired sera (%) |
| >1.50 | 21 (33.3) |
| 1.01–1.49 | 32 (50.8) |
| 1.00 | 2 (3.2) |
| 0.50–0.99 | 8 (12.7) |
| Total | 63 (100.0) |
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