Abstract
Equine herpesvirus type 1 (EHV-1) and type 4 (EHV-4) are ubiquitous equine pathogens, causing significant economic losses in the equine industry. EHV-1 is associated with several clinical forms of disease, including respiratory infection, infectious abortion, neonatal death and equine herpesvirus myeloencephalopathy (EHM). Whereas EHV-4, is predominantly associated with respiratory disease but can cause sporadic cases of abortion. The current review covers the different aspects of the disease, including its epidemiology, pathogenesis, clinical signs and preventive measures. The aim of this paper is to help the veterinarian to understand the disease in order to establish the required preventive and control measures.
Keywords: EHV-1/EHV-4, epidemiology, pathogenesis, clinical signs, diagnosis, treatment, prevention