The following information has been received from Defra:
Equine viral arteritis (EVA) has been confirmed in a stallion in Staffordshire.
There are no human health implications associated with this disease.
Breeding restrictions have been put in place on the infected stallion. An investigation is underway to establish the likely origin of the infection, as well as any mares that may have been affected. The disease is being controlled in line with the industry agreed Horse Betting Levy Board (HBLB) Codes of Practice: www.hblb.org.uk/document.php?id=43]
EVA is a viral infection of horses that occurs worldwide including in mainland Europe. It is transmitted by mating, artificial insemination, contact with infected foetuses and via droplets from the respiratory tract i.e. through coughing and snorting.
EVA is a notifiable disease under the Equine Viral Arteritis Order 1995.
The variety and severity of clinical signs of EVA vary widely. Infection may be obvious or there may be no signs at all. The most significant effects relate to breeding. EVA can cause abortions. Other signs include fever, depression, lethargy, stiff movement, runny nose, conjunctivitis, ('pink eye'), swelling of the lower parts of the legs, around the eye and of the reproductive organs.
There is no treatment available for EVA itself, although there may be treatments to alleviate some of its symptoms. These should be determined by the attending veterinary surgeon.
A preventative vaccine for EVA is available and veterinary advice should be sought about how and when this should be administered.
Further details are available on the Defra website
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