Key infection parameter values.^*

*For the models we assumed that vaccine efficacy was 80% for preventing illness, that 65% of infected persons were symptomatic, that asymptomatic persons would be about half as infectious as symptomatic persons with a shorter infectious period, and that faculty would be less infectious than students. We also assumed that the infectious period duration would be reduced among vaccine failures. See the methods section for additional details and references supporting these assumptions for the models' parameter values.