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Equine Viral Arteritis

Equine Viral Arteritis

Equine Viral Arteritis (EVA) is a contagious disease caused by the equine arteritis virus (EAV). The virus occurs worldwide including mainland Europe in Thoroughbred and non-Thoroughbred populations.

There are no human health implications associated with this disease.

There is also no risk from this disease to species other than equidae.

In Scotland, EVA is notifiable by law under the Equine Viral Arteritis Order 1995. Under the Order, anyone who owns, manages, inspects or examines a horse must notify their local Animal Health and Veterinary Laboratories Agency Office when:

  • They suspect the disease in a stallion, either on the basis of clinical signs or following blood or semen testing.
  • They suspect disease, either on the basis of clinical signs or following blood testing, in a mare that has been mated or artificially inseminated within the past 14 days.

Current Situation

The last incidence of Equine viral arteritis (EVA) in the UK was confirmed in (i) a stallion in Staffordshire on 2 August 2010 and (ii) a stallion in West Sussex on 8 December 2010.