Fig. 1. Timeline of hospital stay of patients colonized or infected with the Pseudomonas aeruginosa outbreak strain, results from environmental samples, and outbreak control measures. The dashed lines represent patients over time and located in the different key rooms when the results of the cultures were negative for extensively drug-resistant P. aeruginosa (XDRPA). The continuous lines show when these results were positive. The red figures represent positive environmental samples (ES).
