Fig 2.

Dendrogram of P. aeruginosa isolates after digestion of DNA with SpeI and PFGE. Comparison of clonal types identified in the present study with previous ones, recovered from patients in the same hospital. No relationship was detected between the recent and the older clones. Lines 8, 9, 6, 7, 2, 3, 10, 11, 4, and 5 are from the present study (clones d, d, a, a, b, b, s, s, c, and c, respectively). Lines 17, 18, 15, 16, 19, 20, 21, 13, and 14 are from a previous study (clones C, C, B, B, D, D, E, A, and A, respectively).