28 Aug 2013

Highly pathogenic avian influenza H7N7, Italy (OIE World Animal Health Information System, August 28 2013, edited)

[Source: OIE, full page: (LINK). Edited.]

Highly pathogenic avian influenza H7N7, Italy

Information received on 28/08/2013 from Prof. Dr Romano Marabelli, Chief Veterinary Officer, Department for Veterinary Public Health, Food Safety and Collegial Bodies for Health Protection, Ministry of Health, Rome, Italy 

  • Summary
    • Report type Follow-up report No. 3
    • Date of start of the event 10/08/2013
    • Date of pre-confirmation of the event 14/08/2013
    • Report date 28/08/2013
    • Date submitted to OIE 28/08/2013
    • Reason for notification New strain of a listed disease
    • Manifestation of disease Clinical disease
    • Causal agent Highly pathogenic avian influenza virus
    • Serotype H7N7
    • Nature of diagnosis Clinical, Laboratory (basic)
    • This event pertains to a defined zone within the country
    • Related reports
      • Immediate notification (15/08/2013)
      • Follow-up report No. 1 (21/08/2013)
      • Follow-up report No. 2 (23/08/2013)
      • Follow-up report No. 3 (28/08/2013)
  • New outbreaks (1)
    • Outbreak 1  - Mordano, BOLOGNA, EMILIA-ROMAGNA
      • Date of start of the outbreak 27/08/2013
      • Outbreak status Continuing (or date resolved not provided)
      • Epidemiological unit Farm
      • Affected animals: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds  - 121705 – 27000 – 364 – 0 – 0
        • Affected population:
          • The positivity regards a commercial layer hens farm located in the protection zone established around the 2nd outbreak in Mordano Municipality.
  • Summary of outbreaks
    • Total outbreaks: 1
      • Total animals affected: Species – Susceptible – Cases – Deaths – Destroyed – Slaughtered
        • Birds – 121705 – 27000 – 364 – 0 – 0
      • Outbreak statistics: Species – Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
        • Birds - 22.18% - 0.30% - 1.35% - 0.30%
        • *Removed from the susceptible population through death, destruction and/or slaughter
  • Epidemiology
    • Source of the outbreak(s) or origin of infection
      • Unknown or inconclusive
  • Epidemiological comments
    • The last testing on 23 August was negative and starting from 26 August abnormal mortality was detected.
    • The National Reference Laboratory in Padova has confirmed H7 at RT-PCR.
    • The farm is already located in the restriction zones and depopulation will be carried out. 
  • Control measures
    • Measures applied
      • Quarantine
      • Movement control inside the country
      • Vaccination prohibited
      • No treatment of affected animals
    • Measures to be applied
      • Stamping out
      • Screening
      • Disinfection of infected premises/establishment(s)
  • Diagnostic test results
    • Laboratory name and type – Species – Test - Test date – Result
      • Experimental Zooprophylactic Institute (IZSVe), PADOVA (National laboratory) – Birds - reverse transcription - polymerase chain reaction (RT-PCR) - 28/08/2013 – Positive
  • Future Reporting
    • The event is continuing. Weekly follow-up reports will be submitted.

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