Using a previously-developed age-dependent transmission model, which classifies population according to their current disease status (susceptible, exposed, infectious, recovered), and model parameters, researchers compared and contrasted the impacts of 8 different strategies of school opening on the spread of SARS-CoV-2.

• years 0, 1, and 6 (full class sizes)
• years 0, 1, and 6 (half class sizes)
• all primary schools
• years 0, 1, 6, 10, and 12 (full class sizes)
• years 0, 1, 6, 10, and 12 (half class sizes)
• all primary schools, years 10 and 12
• all secondary schools
• all schools