Clinical Study on Lot-to-lot Consistency and Immune Persistence of Three Commercial Batches of PPSV23

Conditions: Healthy Volunteers Interventions: Biological: 23 Valent Pneumococcal Polysaccharide Vaccine (lot 1); Biological: 23 Valent Pneumococcal Polysaccharide Vaccine (lot 2); Biological: 23 Valent Pneumococcal Polysaccharide Vaccine (lot 3) Sponsors: Beijing Zhifei Lvzhu Biopharmaceutical Co., Ltd Active, not recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials