Difference between revisions of "Suid Herpesvirus 1"

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Also known as '''Aujeszky's Disease, Pseudorabies, and Mad Itch'''  
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Also known as: '''''Aujeszky's Disease Pseudorabies Mad Itch'''''
  
 
====Hosts====
 
====Hosts====

Revision as of 19:26, 21 August 2010



Also known as: Aujeszky's Disease — Pseudorabies — Mad Itch

Hosts

  • Pigs
  • Cattle
  • Horses
  • Cats
  • Dogs
  • Sheep

Pathogenesis

Sows:

  • Aerosol transmission causes bronchopneumonia followed by viremia
  • Sows will recover but some may abort

Piglets:

  • Virus spreads to neurons, causing encephalitis with convulsions
  • Many die within 2 days

Other animals:

  • Air-borne virus can infect skin wounds
  • Causes pruritus (mad itch) followed by encephalitis

Epidemiology

  • Latent virus can be reactivated by mixing new stock in with old

Diagnosis

  • ELISA for virus antibody

Control

  • England: eradication in the 1980s by serotesting (by ELISA) and culling carriers
  • Vaccines in Europe and Ireland
    • gE-deleted marker vaccines stimulate cell-mediated immunity