Effectiveness of CoronaVac and BNT162b2 COVID-19 mass vaccination in Colombia: A population-based cohort study

• Main Authors: Angel Paternina-Caicedo (Author), Mark Jit (Author), Nelson Alvis-Guzmán (Author), Juan Carlos Fernández (Author), José Hernández (Author), Justo Jesus Paz-Wilches (Author), José Rojas-Suarez (Author), Carmelo Dueñas-Castell (Author), Nelson J. Alvis-Zakzuk (Author), Adrian D. Smith (Author), Fernando De La Hoz-Restrepo (Author)
• Format: Book
• Published: Elsevier, 2022-08-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary: Background: In February 2021, Colombia began mass vaccination against COVID-19 using mainly BNT162b2 and CoronaVac vaccines. We aimed to estimate vaccine effectiveness (VE) to prevent COVID-19 symptomatic cases, hospitalization, critical care admission, and deaths in a cohort of 796,072 ins...