Equine Infectious Anaemia (EIA) is an exotic viral disease affecting horses, donkeys and mules. It is caused by Equine Infectious Anaemia Virus (EIAV), an equid-specific lentivirus in the retrovirus family that is closely to related to HIV in humans. | Equine Infectious Anaemia (EIA) is an exotic viral disease affecting horses, donkeys and mules. It is caused by Equine Infectious Anaemia Virus (EIAV), an equid-specific lentivirus in the retrovirus family that is closely to related to HIV in humans. |