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Upper Respiratory Infections and Equine Herpes Virus

July 2017 by Dr Corinne Hills, DVM,

Upper respiratory infections are a significant problem across all equine industries and within the racing industry, in particular.

Studies have demonstrated considerable economic losses resulting from subclinical disease (when horses don’t look obviously sick, but are performing below expectations), from acute infection (when horses have nasal discharge, a cough and obviously need rest or a reduction in training), and from the hypersensitivity and chronic inflammatory airway disease that develops in the lungs as a result1,2.