Ontology highlight
ABSTRACT: Background
The efficacy of the BNT162b2 vaccine in pediatrics was assessed by randomized trials before the Omicron variant's emergence. The long-term durability of vaccine protection in this population during the Omicron period remains limited.Objective
To assess the effectiveness of BNT162b2 in preventing infection and severe diseases with various strains of the SARS-CoV-2 virus in previously uninfected children and adolescents.Design
Comparative effectiveness research accounting for underreported vaccination in 3 study cohorts: adolescents (12 to 20 years) during the Delta phase and children (5 to 11 years) and adolescents (12 to 20 years) during the Omicron phase.Setting
A national collaboration of pediatric health systems (PEDSnet).Participants
7
SUBMITTER: Wu Q
PROVIDER: S-EPMC11956830 | biostudies-literature | 2024 Feb
REPOSITORIES: biostudies-literature