Efficacy, Immunogenicity and Safety of S. Flexneriza-S. Sonnei Bivalent Conjugate Vaccine in Volunteers Aged From 6 Months to 5 Years
Conditions
Interventions
- BIOLOGICAL: S. Flexneriza-S. Sonnei Bivalent Conjugate Vaccine
- BIOLOGICAL: Placebo
Sponsor
Beijing Zhifei Lvzhu Biopharmaceutical Co., Ltd