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