600
Participants
Start Date
September 10, 2021
Primary Completion Date
September 13, 2021
Study Completion Date
September 13, 2021
Investigational 23-valent PPV
The investigational vaccine was manufactured by Sinovac Biotech Co., Ltd.25μg each for serotypes 1, 2, 3, 4, 5, 6B, 7F, 8, 9N, 9V, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F, and 33F in 0·5 mL of sodium chloride, sodium dihydrogen phosphate and disodium hydrogen phosphate per injection
Control 23-valent PPV
The control vaccine was manufactured by Chengdu Institute of Biological products Co., Ltd. 25μg each for serotypes 1, 2, 3, 4, 5, 6B, 7F, 8, 9N, 9V, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F, and 33F in 0·5 mL of light disodium phenol phosphate, sodium hydrogen phosphate and sodium chloride per injection
Kaifeng County Center for Disease Control and Prevention, Kaifeng
Sinovac Biotech Co., Ltd
INDUSTRY