Unknown pathogenic virus or prion 2 Scorecard

Common Name: Chronic Wasting Disease (Cervids)

Scorecard created on March 03, 2010 - 6:11am

Last Updated on December 21, 2022 - 2:20pm

Results

Impact Total:19 / 35Impact = ( Spread + Damage - Benefit )

Ability to Respond Total:14 / 25Ability to Respond = ( Ease of Response + Tools in Place )

Confidence:Medium

Confidence Notes:

Spread	Notes	Score
Spread Rate	Spreads horizontally between animal populations. It affects mule deer, black-tailed deer, white-tail deer, Rocky Mountain elk and moose. It has not been shown to infect domesticated animals other than captive cervids.	4
Spread Amount	The disease could spread throughout California. It started out only in Colorado, Nebraska, and Wyoming. CWD has now spread to at least 14 U.S. states (including New York and West Virginia) and two Canadian provinces.	4

Damage	Notes	Score
Ecological	Always fatal once symptoms appear. One the disease has become established in a population, 50% of the herd or more often becomes infected, and in some cases, the incidence may be as high as 100%.	4
Agricultural	CWD is less common in wild than farmed cervids.	4
Infrastructure		0
Cultural	Impact on hunters if introduced demonstrated in other states. (Vince Guise)	3
Health	As of 2008, there is no evidence that this disease is zoonotic	0

Total		19

Ease of Response	Notes	Score
Detection	An animal inflicted with CWD will show clear signs such as weight loss, unusual behavior, neurologic signs, excessive salivation, polyuria/polydipsia, signs of aspiration pneumonia and/or unusual retention of the winter coat.	4
Control	Catch and slaughter is an effective tool to get rid of the disease in domesticated herds. However, it is extremely difficult to control in wild populations. Therefore, domesticated cervids must be kept separate from wild populations.	3

Tools in Place	Notes	Score
Entry	While there are programs in place to test and detect CWD and keep it from entering healthy herds, because of its prevalence in wild populations and the difficulty in controlling these populations makes it hard to stem entry.	2
Control	Keeping domesticated herds well separated from wild herds is an effective way of maintaining herd health.	4
Outreach	t does not seem that there are a lot of educational outreach programs about CWD.	1

Total		14

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