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VIRUSES




Introduction

Arteriviruses are animal-specific endemic viruses that persist within a population.

Morphology

  • Small, enveloped, positive sense RNA viruses

Epidemiology

  • Aerosol and venereal transfer
  • Poor vaccination

Virus by Species

Porcine Reproductive and Respiratory Syndrome (PRRS)

Equine Arteritis Virus (EAV)

  • Porcine Reproductive and Respiratory Syndrome (PRRS) (Lelystad virus, Blue ear) in pneumonia, see PRRS