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Encephalomyocarditis Virus Flashcards (view source)
Revision as of 11:40, 30 June 2011
, 11:40, 30 June 2011no edit summary
|a8= Worldwide; cases were first reported in Central America, Florida and Australia
|a8= Worldwide; cases were first reported in Central America, Florida and Australia
|l8= Encephalomyocarditis Virus#Distribution
|l8= Encephalomyocarditis Virus#Distribution
|q9=what type of virus is ''Encephalomyocarditis virus''(EMCV)?
|q9=How can EMCV be diagnosed?
|a9= A single stranded RNA (ssRNA) virus
|a9= A definitive diagnosis can be confirmed by virus isolation from infected heart tissue from pigs that have died in the acute phase of the disease.
|l9= Encephalomyocarditis Virus#Introduction
|l9= Encephalomyocarditis Virus#Diagnosis
|q10=what type of virus is ''Encephalomyocarditis virus''(EMCV)?
|q10=What pathology can be found on postmortem?
|a10= A single stranded RNA (ssRNA) virus
|a10=
|l10= Encephalomyocarditis Virus#Introduction
*Cardiomegaly
|q11=what type of virus is ''Encephalomyocarditis virus''(EMCV)?
*Myocardial lesions with yellow or white necrotic foci (2-15mm diameter), usually on the epicardium of the right ventricle. (also characteristic of Vitamin E and selenium deficiency).
|a11= A single stranded RNA (ssRNA) virus
Infected foetuses can grossly vary depending on the stage of pregnancy and infection and myocardial lesions may be indistinguishable from other viral infections. Foetuses can be haemorrhagic, oedematous or apparently normal.
Acutely affected pigs may not show any gross lesions on post mortem.
|l10= Encephalomyocarditis Virus#Diagnosis
|q11=What histopathological findings can be seen with EMCV?
|a11=
*Myocarditis
*Focal or diffuse accumulation of mononuclear cells
*Vascular congestion and oedema
*Degeneration of the myocardial fibres with necrosis and occasional mineralization of necrotic heart muscle.
*Brain tissue congestion, meningitis, perivascular infiltration (mononuclear cells) and neuronal degeneration.
*In foetuses nonsuppurative encephalitis and myocarditis have been seen
l11= Encephalomyocarditis Virus#Diagnosis