Merck Manual

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Salmon poisoning disease, trematode
Salmon poisoning disease, trematode
Salmon poisoning disease, trematode

Numerous metacercaria (refractile small, white dots) encysting in a fish kidney. The metacercaria was confirmed infected with Neorickettsia helminthoeca by culture of Neorickettsia from a dog fed pieces of this kidney.

Courtesy of Dr. Yasuko Rikihisa