"Dcjtee" wrote in message
"Red Leg" into the pond and that bacterium is transferable to fish
with dire consequences.

A Google does NOT show that it jumps species....


Well just shows you can't trust Google then. It's not a species specific
bacterium. :-)

Red Leg in a frogs is caused by Aeromonas liquefaciens which is also the
cause of hemorrhagic septicaemia (Ulcer Disease ) in fish which is
principally a disease of members of the carp family but not restricted to
that family. (Koi, Goldfish etc)
It is also the cause of "Red disease" in eels with similar ulcers as above
and is implicated in the disease "Red mouth" in Trout.
There are other fish diseases caused by this bacterium too, sometimes on
it's own and sometimes in combination with other bacteria.
Fish are at their most vulnerable in the spring as their water begins to
rise in temperature, starting the bacteria multiplying before the fish's gut
and immune systems are back in full function after the long winter slowdown.

Perhaps Google will show Schaperclaus (1954) who described this disease.
:-)
--
Regards
Bob

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