Background The role of schools in the SARS-CoV-2 pandemic is much debated. We aimed
to quantify reliably the prevalence of SARS-CoV-2 infections at schools detected with …

Background The extent to which children and adolescents contribute to SARS-CoV-2
transmission remains not fully understood. Novel high-capacity testing methods may provide …

Objectives To determine the variation in SARS-CoV-2 seroprevalence in school children
and the relationship with self-reported symptoms. Design Baseline measurements of a …

Background: Switzerland had one of the highest incidence of severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) infections in Europe during the second wave …

Systematic SARS-CoV-2 testing is a valuable tool for infection control and surveillance.
However, broad application of high sensitive RT-qPCR testing in children is often hampered …

Objective To quantify the number of SARS-CoV-2 infections in secondary schools after their
reopening in May 2020. Design Repeated SARS-CoV-2 seroprevalence study after the …

Background Children's role in SARS-CoV-2 epidemiology remains unclear. We investigated
an initially unnoticed SARS-CoV-2 outbreak linked to schools in northern France, beginning …

Background The extent of SARS-CoV-2 transmission among pupils in primary schools and
their families is unknown. Methods Between 28-30 April 2020, a retrospective cohort study …

Background Little is known about the risk of SARS-CoV-2 infection and transmission in
educational settings. Public Health England initiated a study, COVID-19 Surveillance in …

Background School attendance during the COVID-19 pandemic is intensely debated. Aim In
November 2020, we assessed SARS-CoV-2 infections and seroreactivity in 24 randomly …