Study of Modified Process Hib/Hep B Vaccine in Infants (V121-019)(COMPLETED)

Inclusion Criteria: * Healthy 2-month-old full term infants born to non-HBs Ag (hepatitis B virus) carrier mothers Exclusion Criteria: * Birth mother known to be a carrier of hepatitis B virus (HBsAg+) or known carriers ever living in close contact with the subject * History of previous hepatitis B infection; history of vaccination with any hepatitis B vaccine * Recent (\<72 hours) history of febrile illness (rectal temperature \>=38.1°C/\>=100.5°F) * Known or suspected hypersensitivity to any component of RECOMBIVAXHB™ or COMVAX™ (e.g., aluminum, yeast) * Recent administration (w/i 3 months prior to study start) of hepatitis B immune globulin (HBIg), serum immune globulin, or any other blood-derived product * Receipt of investigational drugs or investigational vaccines within 3 months prior to study start or if planned within the study period; * Known or suspected impairment of immunologic function or recent use (within 3 months prior to study start) of immunomodulatory medications (does not include topical and inhaled steroids); * Any condition that, in the opinion of the investigator, might interfere with the evaluation of study objectives; or inability to comply with the study schedule and/or inability to attend all required study visits