Study in Infants (6-12 Months) Comparing Two Doses of a Monovalent Glycoprotein-Conjugated (Diptheria Toxin -CRM197) Vaccine Versus a Tetanus Toxoid-Conjugated Vaccine Available for the Prevention of Haemophilus Influenzae Type b Infections in China

A Phase III Observer-Blind, Randomized, Controlled, Single-Coordinating Center Pediatric Study in China Comparing Two Doses of a Monovalent Glycoprotein-Conjugated (Diptheria Toxin -CRM197) Vaccine Versus a Tetanus Toxoid-Conjugated Vaccine Using a Local Dosing Regimen in Infants

This study will evaluate the safety and efficacy of two doses of two commercially available vaccines used to prevent Haemophilus influenzae type b infections in children 6-12 months of age.

Inclusion Criteria:

• Infants 6-12 months of age.

Exclusion Criteria:

• Prior Hib vaccine administration.
• History of serious reaction(s) following vaccination.
• Any vaccination within 14 days of study vaccination.
• Known or suspected immune impairment.
• For additional entry criteria please refer to the protocol.