Anti-D concentrations, ≥0.01 IU/mL, ≥0.1 IU/mL and ≥1.0 IU/mL: Anti-T antibody concentrations ≥0.01 IU/mL, ≥0.1 IU/mL and ≥ 1.0 IU/mL; Anti-Hep B antibody concentrations ≥10 mIU/mL and ≥100 mIU/mL; Anti-PRP antibody concentrations ≥0.15 µg/mL and ≥1.0 µg/mL; Anti-pertussis toxin antibody and anti-filamentous haemagglutinin (FHA) antibody concentrations Lower Limit of Quantitation (LLOQ), ≥2x LLOQ and ≥4x LLOQ and Anti-poliovirus 1, 2, and 3 antibody titers ≥8 (1/dil)

Antibodies against Hepatitis B (Hep B) were measured by chemiluminescence detection.

Seroprotection was defined as titers ≥ 0.01 IU/mL for Diphtheria (D) and Tetanus (T); ≥ 10 IU/mL for Hep B; ≥ 0.15 µg/mL for PRP, and ≥ 8 (1/dil) for Poliovirus. Vaccine response for PT and FHA were defined as a titer ≥ lower limit of quantitation (LLOQ) in initially seronegative participants, or at least persistence (post-vaccination titer ≥ pre-vaccination titer) in initially seropositive subjects (titer ≥ LLOQ).

Antibody titers were measured for hepatitis B (Hep B) by enhanced chemiluminescence detection, for Haemophilus influenzae type b (PRP) by Farr type radioimmunoassay, for diphtheria by toxin neutralization test, and for tetanus by enzyme linked immunosorbent assay (ELISA). Antibody titers were measured for poliovirus types 1, 2, and 3 by neutralization assay. Antibody titers were measured for pertussis toxoid (PT) and filamentous hemagglutinin (FHA) by ELISA.

Antibody persistence and immunogenicity response: Level 1: ≥ 10 mIU/mL for hepatitis B (Hep B), ≥ 0.15 µg/mL for Haemophilus influenzae type b (PRP), and ≥ 0.01 IU/mL for diphtheria (D) and tetanus (T). Level 2: ≥ 100 mIU/mL (Hep B), ≥ 1.0 µg/mL (PRP), and ≥ 0.1 IU/mL (D and T) Level 3, ≥ 1.0 IU/mL (D and T). Anti-polio titers were defined as ≥ 8 (1.dil), and pertussis toxoid (PT) and filamentous hemagglutinin (FHA) by a 4 fold increase from Day 0.

Solicited Injection Site Reactions: Pain, Erythema, Swelling, Extensive Swelling of Vaccinated Limb. Solicited Systemic Reactions: Pyrexia (Temperature), Vomiting, Crying, Somnolence, Anorexia, Irritability. Grade 3 reactions were defined as: Pain, cries when injected limb is moved or movement of injected limb reduced; Erythema and swelling, ≥ 5cm; Extensive swelling of limb; Pyrexia, ≥ 39.6ºC; Vomiting ≥ 6 episodes/24 hours or requiring parenteral hydration; Somnolence, sleeping most of time or difficult to wake up; Anorexia, refuses ≥ feeds or most feeds; Irritability, inconsolable.