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Vaccine samples used in this study*
| No. | Vaccine types | Indicated pertussis component content per single human dose |
|---|---|---|
| S1 | DTwP | 4.5 × 109 CFU of B. pertussis |
| S2 | Co-purified DTaP | 9 PNμg of pertussis antigens |
| S3 | Co-purified DTaP | 9 PNμg of pertussis antigens |
| S4 | purified DTaP | PT 25 μg, FHA 25 μg, PRN 8 μg |
*Note: DTwP, diphtheria, tetanus and whole cell pertussis vaccines; DTaP, diphtheria, tetanus toxoids and acellular pertussis vaccines.
