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Defining and declaring an epizootic can be subjective; health authorities evaluate the number of new cases in a given animal population during a given period, and estimate a rate of spread that substantially exceeds what they might expect based on recent experience
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rate). Because the judgement is based on what is "expected" or thought normal, a few cases of a very rare disease (like a
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Common diseases that occur at a constant but relatively high rate in the population class as "
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population) might be classified as an "epizootic", while many cases of a common disease (like
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virus in some bird populations or, at a lower incidence, the Type IVb strain of
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for human diseases). An example of an enzootic disease would be the
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is sometimes plagued by disease because of the large number of
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for the Great
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An example of an epizootic was the 1990 outbreak of
101:is a major contributing factor to epizootics. The
174:that resulted in the death of some 10,000 birds.
331:Viral Hemorrhagic Septicemia (VHS) - Fact Sheet
27:Animal disease event, analogous to an epidemic
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126:transmissible spongiform encephalopathy
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232:Mathematical modelling in epidemiology
159:in certain Atlantic fish populations.
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83:in humans. An epizootic disease (or
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227:1890s African rinderpest epizootic
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418:History of veterinary medicine
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157:viral hemorrhagic septicemia
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112:confined to a small area.
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120:a sharp elevation in the
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30:Not to be confused with
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396:, accessed 8 May 2020
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334:www.inspection.gc.ca
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99:population density
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164:Newcastle disease
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361:. Retrieved
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172:Great Lakes
103:aquaculture
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363:2007-05-24
303:2007-05-24
272:2012-06-06
249:References
211:Epizoology
97:"). High
49:epizoology
18:Epizootics
216:Panzootic
166:virus in
153:influenza
149:"endemic"
122:incidence
95:panzootic
67:"upon" +
57:epizoötic
53:epizootic
372:cite web
312:cite web
206:Enzootic
201:Epidemic
178:See also
145:enzootic
106:industry
91:outbreak
86:epizooty
81:epidemic
267:Cdc.gov
138:esocids
73:disease
59:, from
32:Epizoic
130:cervid
77:animal
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