Effectiveness of the fourth dose of COVID-19 vaccines against severe COVID-19 among adults 40 years or older in Brazil: a population-based cohort studyResearch in context

• Main Authors: Felippe Lazar Neto (Author), Matt D.T. Hitchings (Author), Avnika B. Amin (Author), Giovanny V.A. de França (Author), Margaret L. Lind (Author), Mario Sergio Scaramuzzini Torres (Author), Daniel Henrique Tsuha (Author), Roberto D. de Oliveira (Author), Derek A.T. Cummings (Author), Natalie E. Dean (Author), Jason R. Andrews (Author), Albert I. Ko (Author), Julio Croda (Author), Otavio T. Ranzani (Author)
• Format: Book
• Published: Elsevier, 2024-06-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary: Background: The emergence of COVID-19 variants with immune scape and the waning of primary vaccine schemes effectiveness have prompted many countries to indicate first and second booster COVID-19 vaccine doses to prevent severe COVID-19. However, current available evidence on second booster...