RENBP and infection: In a scenario when Ag testing was not available (i.e., comparing PCR testing with no in-shelter surveillance) (Table 3), PCR testing averted 0.028% infections and increased mean QALYs by 0.0009 (95% credible range=0.0001, 0.0024) at 75% vaccination coverage, with an incremental net cost of $386 ($327, $444) per shelter resident from the healthcare payer perspective and $303 ($144, $422) per shelter resident from the societal perspective.