Fig 6. Tree showing the genetic similarity between pathogenic E. cecorum isolates from 7 waterfowl flocks (W) based on PFGE (SmaI) and PCR results (sequences of sodA gene fragment).

No pulsotypes were found. Phylogenetic analysis showed 2 groups (I-II). The each isolate is shown with the corresponding PCR-group (sodA), number, year of isolation, location of affected flock. Dendogram was constructed based on the Dice similarity coefficient and the UPGMA clustering method. Enterococcus cecorum ATCC 43198 was used as a reference strain.