Table 4. Results of anti-PT antibody from three kinds of mouse serum.
| Repeated No. | EU/mL | ||
|---|---|---|---|
| Serum-1 | Serum-2 | NIBSC | |
| 1 | 1,292.99 | 489.57 | 37.71 |
| 2 | 1,311.81 | 517.18 | 31.70 |
| 3 | 1,297.07 | 598.06 | 35.13 |
| Mean | 1,300.62 | 534.94 | 34.85 |
Serum-1 was obtained from the developing vaccine immunized mice and serum-2 was obtained from the commercial vaccine immunized mice. NIBSC was the control serum.
PT, pertussis toxoid; EU, enzyme-linked immunosorbent assay unit; NIBSC, National Institute for Biological Standard and Control.