Maedi Visna Caprine Arthritis Encephalitis EIA Flashcards
Clinical signs of maedi visna are more severe in young animals than in adults
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Heavy nasal discharge is a clinical sign of maedi
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The maedi virus and the visna virus are related but they can be differentiated with PCR
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Interstitial pneumonia is the main postmortem lesion of visna
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Interstitial pneumonia is the main postmortem lesion of Maedi
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Maedi and visna are caused by the same virus
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Maedi-visna virus is shed in tracheal discharge and milk
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Maedi-visna is maintained by persistently infected sheep
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Weakness of the hinder legs is a clinical sign of visna
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Inactivated and attenuated vaccines are widely used for the prevention of maedi-visna
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Clinical signs of maedi can be seen in sheep above 3-4 years of age
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Maedi-visna can occur in sheep, goats, and cattle
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Europe is already free from maedi-visna
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Maedi/visna is spreading slowly in the flock
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Maedi/visna virus is shed in the milk
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Maedi is seen in 3-4 years old sheep.
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Large amount of mucoid nasal discharge is typical in the case of maedi
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Maedi/visna spreads from sheep to other animals
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Maedi/visna virus is shed in nasal discharge, respiratory secretions and milk
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Clinical sign of maedi/visna appear from the age of 6-8 months
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Meadi/visna most important clinical sign is profuse diarrhoea
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Maedi/visna virus is shed only in tracheal discharge
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Clinical signs of maedi are mainly seen in lambs below half a year of age.
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Maedi/visna virus causes interstitial pneumonia in sheep
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Clinical signs of the central nervous system can be seen in the case of visna
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Maedi/visna virus causes viraemia
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Wet cough and intensive nasal discharge are typical signs of maedi
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De-myelinization is the reason for the clinical signs of visna
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Attenuated vaccines are widely used to prevent maedi/visna
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Maedi appears in Hungary
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Maedi is spreading fast
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In order to eradicate maedi/visna infected ewes have to be culled with their lambs.
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Clinical sign of maedi/visna appear from the age of 6 months
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