ウナギのワタカブリ病の伝染性原発病の研究

抄録

Diseased eels collected from eel-culturing ponds where the so-called fungus disease was prevailing presented mostly external and internal symptoms characteristic of Aeromonas infection. While about one fifth of the diseased eels examined showed no signs of fungus infection.
Aerononas liquefaciens was regularly isolated from the skin lesions and/or the viscera of diseased fish.
Eels inoculated intramuscularly with this bacterium became easily infected with Saprolegnia Parasitica and an appreciable parallelism was found between severity of “Aeromonas disease” and that of fungus infection.
The conclusion, therefore, is that A. liquefaciens is the primary causative agent of the so-called fungus disease of eels.