COVID-19 Infections Among Students and Staff in New York City Public Schools.

Background: The 2019 novel coronavirus disease (COVID-19) pandemic led many jurisdictions to close in-person school instruction.

Methods: We collected data about COVID-19 cases associated with New York City (NYC) public schools from polymerase chain reaction testing performed in each school on a sample of asymptomatic students and staff and from routine reporting. We compared prevalence from testing done in schools to community prevalence estimates from statistical models.