Friday, May 20, 2011

Emergency Update for EHM (EVH-1) Outbreak - neurologic equine herpesvirus-1

May 19, 2011
Here are some pieces of information that have been reported and a link to a very thorough article in TheHorse.com
·         Cases have been confirmed in Oregon, Washington and California as well as other states and also in South Africa.
·         Many horses are under quarantine. Veterinarians are still working to determine the extent of the outbreak. The number of horses confirmed or suspected to have EVH-1 remains on the rise, with several states reporting cases. A common point of origin for all the positive horses is the National Cutting Horse Association's (NCHA) Western National Championship competition, held April 28-May 8 in Ogden, Utah.
·         There have been equine deaths.
·         Many states are considering travel restrictions.
·         Many barns are restricting hauls-ins, and canceling shows, clinics etc.
·         Equine herpesvirus is highly contagious and can cause a variety of ailments in horses, including rhinopneumonitis (a respiratory disease mostly of young horses), abortion in broodmares, and myeloencephalopathy (evident in the neurologic form). The virus is not transmissible to humans. Clinical signs of the neurologic EHV-1 form include fever, ataxia (incoordination), weakness or paralysis of the hind limbs, and incontinence. The virus is generally passed from horse to horse via aerosol transmission (when affected animals sneeze/cough) and contact with nasal secretions.
·         Currently, there is no equine vaccine that has a label claim for protection against the neurological strain of the virus.
More information on this situation can be found at:
Obviously the situation is very fluid. Stay in touch with your vet and check the Oregon and Washington Veterinary Association websites frequently as well as the veterinary association websites in other states where your horses may be located.
Holistic Horse Bodyworks
1451 NE Parkside Drive
Hillsboro, Oregon 97124
(503) 867-1023


copied from Holistic Horse Bodyworks web page!!

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