Bovine Immunodeficiency Virus

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(BIV)

  • Lentivirus (non-oncogenic)
  • Causes a persistent viral infection and lymphocytosis
  • Immunocompromised cattle may develop secondary infections
  • The transmission is not well known, but the following possibilities are being researched:
    • Through milk
    • Through infected semen (e.g.artificial insemination)
    • Placental transfer
  • Diagnosis:
    • Western Blot
    • PCR