SALMON POISONING DISEASE AND ELOKOMIN FLUKE FEVER


Salmon poisoning disease (SPD) is caused by Neorickettsia helminthoeca and Elokomin fluke fever (EFF) by N. elokominica, two rickettsias transmitted by trematode vector Nanophytus salmonica. The trematode harbours the rickettsias throughout its life cycle, which is complex and involves two intermediate hosts, a snail and salmonid fish; the adult fluke is found in fish-eating mammals and birds. The disease is seen mainly on the west coast of North America, coincident with the distribution of the snail intermediate host (Oxytrema silicula). Although the fluke has a fairly wide host range, rickettsial disease is generally seen only in dogs: cats are not susceptible.



CLINICAL SIGNS

DIAGNOSIS

TREATMENT

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