Clinical Outcomes of Children With COVID-19 by SARS-CoV-2 Strain: A Cohort Study.

Objective: We sought to investigate the disease outcomes and predictors of severe outcomes among children infected with the Delta variant of SARS-CoV-2 compared with pre-Delta strains.

Methods: Single-center retrospective cohort study in an emergency department located within an urban academic children's hospital. Patients included children (0-18 years) who tested positive for SARS-CoV-2.