In a Pseudomonas aeruginosa (P. aeruginosa)-induced pneumonia model in rats, Rezaiguia et al., measured alveolar protein and liquid clearance, 24 h after intratracheal instillation of bacteria, by instilling 5% bovine albumin solution with 125I-labeled human albumin into the airspaces (Rezaiguia et al., 1997). This evidence concerns the gene ALB and susceptibility to pneumonia measurement.