Geneva, Feb. 13 -- International Clinical Trials Registry received information related to the study (ChiCTR2600118308) titled 'Evaluation of protective effect and immunization strategies of varicella vaccine based on real world' on Feb. 4.
Study Type: Observational study
Study Design:
Cohort study
Primary Sponsor: Tongzhou District Center for Disease Control and Prevention, Beijing
Condition:
Varicella
Intervention:
Breakthrough Case Group:None
Primary Case Group:None
Control Group:None
Exposed Group:None
Recruitment Status: Recruiting
Phase: N/A
Date of First Enrollment: 2025-01-07
Target Sample Size: Breakthrough Case Group:74;Primary Case Group:74;Control Group:74;Exposed Group:381;Unexposed Group:381;
Countries of Rec...