Figure 3.

Pneumocystis cases and Pneumocystis-controls plotted by genotype-group and date of diagnosis. Day “0”: Diagnosis of first outbreak case, September 21, 2007. The three groups are color coded. Control patients were admitted at the same hospital as the cases. Two pairs of Pneumocystis-controls had the same genotype and were colored accordingly. Two controls were infected with outbreak strains. One, a patient treated with immunosuppressants for glomerulonephritis was admitted to the same ward as the RTRs; the other was a patient with myelodysplastic syndrome admitted to the Department of Hematology in another building at the hospital.