Association of Prior COVID-19 Vaccination With SARS-CoV-2 Infection and Death in Children and Young Persons During the Omicron Variant Period in Brazil
1 Department of Pediatrics, Health Sciences Postgraduate Program, School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil.
2 Department of Statistics, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
3 Department of Pediatrics, Rady Children's Hospital, University of California, San Diego, La Jolla.
4 Health Science/Primary Care Postgraduate Program, State University of Montes Claros (Unimontes), Montes Claros, Minas Gerais, Brazil.
This case-control study evaluates nationwide information surveillance systems in Brazil to estimate vaccine effectiveness against outcomes of COVID-19 in children and young persons.