Abstract
Equine infectious anemia (EIA), a persistent infectious disease of horses and all other equids, is caused by a macrophage tropic lentivirus, the equine infectious anemia virus (EIAV), which is a positive-sense, single-stranded ribonucleic acid (RNA) virus. The disease, also known as “swamp fever,” is distributed worldwide. The clinical signs of EIA vary greatly and can be represented in three forms, namely, acute, chronic, and clinically inapparent infection. Pathological changes include generalized lymphadenopathy, splenomegaly, hepatomegaly, evidence of anemia and icterus, etc. Contaminated blood by human interventions plays a major role in the transmission of EIA, in addition to the vector-mediated transmission by tabanids and stable flies. The most reliable serological test used to date is the Coggins test, which is an agar gel immunodiffusion (AGID) test and is considered the gold standard. ELISAs and Western blot are also described. There is no treatment or effective prophylactic measures for EIA, and control of the disease depends entirely on the proper identification followed by quarantine or euthanasia of the EIAV-positive animals. The article describes the etiology, epidemiology, pathogenesis, clinical symptoms, and pathological lesions of the disease. The diagnosis of the disease as well as treatment, development of vaccines, and control and containment measures are discussed.
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Malik, P., Singha, H., Sarkar, S. (2017). Equine Infectious Anemia. In: Bayry, J. (eds) Emerging and Re-emerging Infectious Diseases of Livestock. Springer, Cham. https://doi.org/10.1007/978-3-319-47426-7_8
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