Table 1.
Study design and schedule.
| Age (days)
|
|||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 (birth) | 2 | 4 | 7 | 9 | 11 | 14 | 16 | 18 | 21 | 23 | 25 | 28 | 31 | 35 | 38 | 42 | 45 | 49 | |
| MeHg group (oral dose, μg/kg) | 20 | 20 | 20 | 20 | |||||||||||||||
| OPV (0) | OPV (0) | ||||||||||||||||||
| Thimerosal group [ethylmercury dose, in im vaccine (μg/kg)] | OPV (0) | HB (4) | OPV (0) | HB (4) | |||||||||||||||
| HB (20) | DTP (8) | DTP (10) | DTP (8) | ||||||||||||||||
| Hib (8) | Hib (10) | Hib (8) | |||||||||||||||||
| Blood draws (days after most recent dose) | 0 | 2 | 4 | 7 | 2 | 4 | 7 | 2 | 4 | 7 | 2 | 4 | 7 | 10 | 14 | 17 | 21 | 24 | 28 |
| Sacrifice day (days after last dose) | 2 | 4 | 7 | 28 | |||||||||||||||
Abbreviations: DTP, diphtheria/tetanus/pertussis vaccine; HB, hepatitis B vaccine; HIB, haemophilus influenzae type b vaccine; OPV, oral polio vaccine.