Salmonid susceptibility to whirling disease

This page tabulates susceptibility of various salmonids to whirling disease.

**Susceptibility* to whirling disease among salmonids**
Genus	Common Name	Score
Oncorhynchus	Rainbow trout	3
	Steelhead trout	3
	Cutthroat trout
	Yellowstone cutthroat	2
	Westslope cutthroat	2
	Colorado River cutthroat	2
	Rio Grande cutthroat	2
	Greenback cutthroat	2
	Chinook salmon	2
	Sockeye salmon	3
	Chum salmon	1 S
	Pink salmon	1 S
	Cherry salmon	1 S
	Coho salmon	1
Salvelinus	Brook trout	2
	Dolly Varden	1 S
	Bull trout	1
	Lake trout	0 S
Salmo	Atlantic salmon	2 S
Salmo	Brown trout	1
Prosopium	Mountain whitefish	2 S
Thymallus	European grayling	2 S
Thymallus	Arctic grayling	0
Hucho	Danube salmon	3
Susceptibility as defined in laboratory or exposure to M. cerebralis* at vulnerable life stages. ^Score of 0-3 or S: 0=resistant, no spores develop; 1=partial resistance, clinical disease rare and develops only when exposed to very high parasite doses. Additional recommended knowledge Correct Test Weight Handling Guide: 12 Practical Tips What is the Correct Way to Check Repeatability in Balances? How to ensure accurate weighing results every day? 2=susceptible, clinical disease common at high parasite doses, but greater resistance to disease at low doses. 3=highly susceptible, clinical disease common. S=susceptibility is unclear (conflicting reports, insufficient data, lack of M. cerebralis confirmation). Data collated by Beth MacConnell and Dick Vincent and used with permission of the Whirling Disease Initiative, which funded the study.