ALB and hypersensitivity pneumonitis: After ten days of infecting mice with virus through intranasal inoculation, we noticed a considerable reduction in alveolitis in the mice that were infected with rCD66c bound IAV (Figure S1a) as compared to mice treated with virus alone (Figure S1b) or virus incubated with protein control Bovine Serum Albumin (BSA) (Figure S1c).