Fig. 3.

(A) The number of infections in the Cornell community under virtual instruction under the nominal scenario, varying the fraction of off-campus students engaged in virtual instruction that do not use the offered testing (“persistent noncompliance”) and the total number of off-campus students. If off-campus students’ willingness to comply with 2×/wk optional testing is not sufficiently high, a large number of infections result. (B) Under 200 parameter configurations drawn from the prior, the number of infections under virtual and residential instruction. Infections are smaller under residential instruction than under virtual instruction in most parameter configurations (blue dots), and when they are not (red dots) they are not substantially larger. (C) Number of infections under two pessimistic configurations (maximizing residential infections and residential - virtual infections) and two types of semesters (virtual and residential) for different levels of pessimism. Param, parameter.