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Also known as: '''''EVA — Equine Arteritis Virus — EAV'''''

Also known as: '''''EVA — Equine Arteritis Virus — EAV'''''

== Introduction  ==

== Introduction  ==

This is a notifiable disease of horses in the UK caused by Equine Arteritis Virus. The disease infects the nasopharynx after respiratory transmission, causing a multitude of respiratory signs. The disease can also be spread venereally. After this, the virus spread to lymphoid tissue leading to '''[[leukopenia]]''' and '''immunosuppression'''. Then it disseminates through the circulatory system causing medial necrosis of arteries and thus haemorrhages and abortions, as well as oedema.

This is a notifiable disease of horses in the UK caused by Equine Arteritis Virus. The disease infects the nasopharynx after respiratory transmission, causing a multitude of respiratory signs. The disease can also be spread venereally. After this, the virus spread to lymphoid tissue leading to '''leukopaenia''' and '''immunosuppression'''. Then it disseminates through the circulatory system causing medial necrosis of arteries and thus haemorrhages and abortions, as well as oedema.

Many cases are subclinical and only '''antibody positive.'''  

Many cases are subclinical and only '''antibody positive.'''  

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[[Category:Expert_Review - Horse]] [[Category:Respiratory_Viral_Infections]] [[Category:Alimentary Diseases - Horse]][[Category:Lymphoreticular and Haematopoietic Diseases - Horse]][[Category:Respiratory_Diseases_-_Horse]]

[[Category:Expert_Review - Horse]] [[Category:Respiratory_Viral_Infections]] [[Category:Alimentary Diseases - Horse]][[Category:Lymphoreticular and Haematopoietic Diseases - Horse]][[Category:Respiratory_Diseases_-_Horse]]