Effectiveness of Vaccination Against COVID-19 in Brazil: Case-Control Study

Clinical trial NCT05621928 · UNKNOWN

Trial details

NCT number: NCT05621928
Sponsor: The Immunobiological Technology Institute (Bio-Manguinhos) / Oswaldo Cruz Foundation (Fiocruz)
Status: UNKNOWN
Study type: OBSERVATIONAL

COVID-19 Vaccines

Start date: 2022-02-07
Primary completion: 2023-10-31
Enrollment: 3920

View on ClinicalTrials.gov

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