Immunogenicity and Safety of a Third Dose and Immune Persistence of BBIBP-Corv Vaccine in Elderly People With Chronic Bronchitis and COPD
Conditions:   COVID-19;   Chronic Bronchitis;   COPD Intervention:   Biological: Inactivated COVID-19 vaccine Sponsors:   China National Biotec Group Company Limited;   Zhejiang Provincial Center for Disease Control and Prevention;   Beijing Institute of Biological Products Co Ltd. Not yet recruiting (Source: ClinicalTrials.gov)
Source: ClinicalTrials.gov - November 2, 2021 Category: Research Source Type: clinical trials