Porcine reproductive and respiratory syndrome, Laos (OIE, July 6 2010, extract, edited)

[Source: OIE, Full PDF Document (LINK). Extract, edited.]

Porcine reproductive and respiratory syndrome, Laos

Information received on 06/07/2010 from Dr Khambounheuang Bounkhouang , Directeur Général, Département de l'Elevage et des Pêches , Ministère de l'Agriculture et des Forêts , Vientiane, Laos


  • Summary
    • Report type Immediate notification
    • Start date 16/06/2010
    • Date of first confirmation of the event 02/07/2010
    • Report date 06/07/2010
    • Date submitted to OIE 06/07/2010
    • Reason for notification First occurrence of a listed disease
    • Manifestation of disease Clinical disease
    • Causal agent Porcine reproductive and respiratory syndrome virus
    • Nature of diagnosis Suspicion, Clinical, Laboratory (advanced), Necropsy
    • This event pertains to the whole country
  • New outbreaks
    • Summary of outbreaks
      • Total outbreaks: 2
        • Location(s) - VIENTIANE CAPITAL (Ban Nahay, Hatxaifong; Ban Phao, Hatxaifong)
          • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
            • Swine - 790 - 145 - 48 - 0 - 0
        • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
          • Swine - 18.35% - 6.08% - 33.10% - 6.08%
          • * Removed from the susceptible population through death, destruction and/or slaughter
  • Epidemiology
    • Source of the outbreak(s) or origin of infection
      • Unknown or inconclusive
      • Introduction of new live animals
  • Epidemiological comments
    • The introduction of new live animals into the farm and low biosecurity of the farm are the likely source of the occurrence of the disease.
  • Control measures
    • Measures applied
      • Quarantine
      • Movement control inside the country
      • Zoning
      • Disinfection of infected premises/establishment(s)
      • No vaccination
      • No treatment of affected animals
    • Measures to be applied
      • Vaccination in response to the outbreak (s)
  • Diagnostic test results
    • Laboratory name and type National Animal Health Centre (National laboratory)
      • Tests and results: Species - Test - Test date - Result
        • Swine - real-time PCR - 02/07/2010 - Positive
  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.
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