Equine Herpes Virus — United States
As of 29 Mar 2019, 3 confirmed cases of EHV have been identified, and the associated premises and exposed horses on the premises have been placed under quarantine by the State Veterinarian. EHV-1 has been confirmed in all 3 cases by lab testing.
Two of the 3 cases have had no travel history since initial exposure or any travel history at all. Trace outs of potential contacts are being pursued for the 3rd case. Two of the cases are in Maricopa County and one case is in Yavapai County.
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