1,133
Participants
Start Date
March 10, 2021
Primary Completion Date
September 5, 2021
Study Completion Date
September 5, 2021
COVAX+IIV4; COVAX+PPV23
1st dose : combined vaccination of COVAX+IIV4; 2nd dose: combined vaccination of COVAX+PPV23
COVAX only (1st and 2nd dose)
1st dose: COVAX only; 2nd dose: COVAX only
IIV4 for the 1st dose and PPV23 for the 2nd dose
1st dose: IIV4 only; 2nd dose: PPV23 only
Shanghai Municipal Center for Disease Control and Prevention, Shanghai
Sichuan Center for Disease Control and Prevention, Chengdu
Shanxi Provincial Center for Disease Control and Prevention, Taiyuan
Chengdu Institute of Biological Products Co.,Ltd.
INDUSTRY
Changchun Institute of Biological Products Co., Ltd.
INDUSTRY
Beijing Institute of Biological Products Co Ltd.
INDUSTRY
Sichuan Center for Disease Control and Prevention
OTHER_GOV
Shanghai Municipal Center for Disease Control and Prevention
OTHER
Centers for Disease Control and Prevention, China
OTHER_GOV
China National Biotec Group Company Limited
INDUSTRY