Fifty two isolates of atypical Aeromonas salmonicida, recovered from a wide range of hosts
and geographical locations, were heterogeneous in terms of molecular and phenotypic
characteristics, and represented taxa which could not be accommodated by the current
classification of four subspecies. Generally, there was incongruence between the molecular
(PCR, RAPD and ribotyping) and phenotypic methods in terms of cluster membership. By
PCR, 6 groups were described of which Group 1 encompassed 12 isolates including the …