2,394
Participants
Start Date
September 30, 2011
Primary Completion Date
December 31, 2011
Study Completion Date
January 31, 2012
A+C+hib Conjugate Vaccine
The group A, C polysaccharide meningococcal and type b haemophilus influenzal conjugate vaccine (Wuxi Royal Biological Co., LTD, 20110101) will be administered intramuscularly on one arm, per 0.5ml dose
Placebo
Placebo will be administered intramuscularly on the other arm, per 0.5ml dose
A+C Vaccine
The group A, C polysaccharide meningococcal vaccine (Wuxi Royal Biological Co., LTD, 20101202) will be administered intramuscularly on one arm, per 0.5ml dose
Hib vaccine
The type b haemophilus influenzal vaccine (Sanofi Pasteur Limited) will be administered intramuscularly on the other arm, per 0.5ml dose
Funing county Center for Disease Control and Prevention, Funing County
Royal (Wuxi) Biological Co., LTD
OTHER
Jiangsu Province Centers for Disease Control and Prevention
NETWORK