An outbreak of equine viral arteritis (EVA) has resulted in quarantine restrictions in 18 states, with nine states reporting positive cases. A vaccine shortage is hampering efforts to control the outbreak.


 Although the virus has thus far been limited to Quarter Horse breeding farms, Peter Timoney, FRCVS, PhD, of the University of Kentucky‘s Maxwell H. Gluck Equine Research Center, sees an opportunity for transmission into the Thoroughbred industry as the breeds often share the same areas at tracks and are often crossbred

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