Thehorse.com - Full Article
by: Erica Larson, News Editor
June 24 2011, Article # 18439
The USDA Animal and Plant Health Inspection Service released its final situation report on the equine herpesvirus-1 (EHV-1) outbreak that affected the western United States and Canada starting in mid-May. The outbreak is believed to have stemmed from horses attending a national championship cutting competition held in Utah in early May. In its most recent report the USDA indicated that disease spread had been contained.
Although it's not transmissible to humans, EHV-1 is highly contagious among horses and camelids, and it is generally passed from horse to horse via aerosol transmission (when affected animals sneeze/cough) and contact with nasal secretions. The disease can cause a variety of ailments in equines, including rhinopneumonitis (a respiratory disease usually found in young horses), abortion in broodmares, and myeloencephalopathy (EHM, the neurologic form). Myeloencephalopathy is characterized by fever, ataxia (incoordination), weakness or paralysis of the hind limbs, and incontinence.
The California Department of Food and Agriculture issued a press release June 20 indicating that animal health officials believe the outbreak has been successfully contained in that state. The release indicated that California has not diagnosed a new case of EHV-1 in the past 14 days...
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