Ever since 1984, few equine diseases have stimulated more interest or gained greater international notoriety than equine viral arteritis (EVA). EVA has long been recognized as a contagious disease of equids with the potential to cause economically damaging outbreaks especially in breeding populations in which it may give rise to widespread abortion and illness and death in young foals (Doll et al., 1957; Golnik et al., 1981). For those seeking additional information about the virus, clinical featuresof EVA and factors pertinent to the epidemiology of the disease, please consult the following comprehensive review on the subject (Timoney, 2009). Much is currently known about the biology of the causal agent, EAV and the epidemiology of the disease. This has led to the development of strategies for the effective prevention and control of the disease including the availability of an attenuated modified live virus vaccine that has been shown to be safe and protective for immunizing stallions and non-pregnant mares (McCollum, 1969; Timoney and McCollum, 1993).
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