Equine Herpes Virus

Equine Herpes Virus (EHV) causes Rhinopneumonitis or Rhino, a contagious respiratory illness that can lead to abortion and, rarely, nervous system disorders. Young horses are more susceptible to EHV because they haven't built up an immunity. Any horse with a compromised immune system is at increased risk as well. Many horses are asymptomatic carriers of the virus.

What are the symptoms?
Two to ten days after exposure, your horse will show symptoms. Signs may include a runny nose, cough and elevated temperature.

Where does it come from?
EHV is most often spread from horse to horse through saliva droplets in the air or via contaminated surfaces and water buckets. In rare cases, it can be carried on clothing and spread to your horse. It is not contagious to humans or other species.

How is it diagnosed?
Blood test and nasal swaps are used to diagnose EHV.

How is it treated?
Rest is the best treatment for EHV. Keep your horse warm and well fed. Stress can inhibit recovery. If his temperature is very high, there may be a secondary infection. If so, your vet will prescribe antibiotics.

How is it prevented?
Pregnant mares and horses that are in contact with others of unknown medical history can be vaccinated against rhinopneumonitis. Your veterinarian will advise you on the need for a rhino vaccine.

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