Infectious Anemia Virus, Equine

**Definition:** A species of LENTIVIRUS, subgenus equine lentiviruses (LENTIVIRUSES, EQUINE), causing acute and chronic infection in horses. It is transmitted mechanically by biting flies, mosquitoes, and midges, and iatrogenically through unsterilized equipment. Chronic infection often consists of acute episodes with remissions.

**Tree numbers:** - B04.820.650.589.520.400

**Synonyms:** - Equine infectious anemia virus - Swamp Fever Virus - EIAV